1 | /* ResolutionSmearing.c |
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2 | |
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3 | Generalized smearing routines |
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4 | |
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5 | */ |
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6 | |
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7 | #pragma XOP_SET_STRUCT_PACKING // All structures are 2-byte-aligned. |
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8 | |
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9 | #include "XOPStandardHeaders.h" // Include ANSI headers, Mac headers, IgorXOP.h, XOP.h and XOPSupport.h |
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10 | #include "SANSAnalysis.h" |
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11 | #include "GaussWeights.h" |
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12 | #include "ResolutionSmearing.h" |
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13 | |
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14 | int |
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15 | Smear_Model_20_X(GenSmearParamsPtr p) |
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16 | { |
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17 | PassParams pp; |
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18 | FunctionInfo fi; |
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19 | int badParameterNumber; |
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20 | int requiredParameterTypes[2]; |
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21 | int err; |
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22 | double ans; |
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23 | //char buf[256]; |
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24 | |
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25 | //Get name of function into string here with |
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26 | char func[255]; |
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27 | GetCStringFromHandle(p->funcname, func, sizeof(func)); |
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28 | |
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29 | //Make sure function that we want to call exists |
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30 | //GetFunctionInfo(func,&fi); |
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31 | if (err = GetFunctionInfo(func,&fi)){ |
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32 | // if (err = GetFunctionInfo("Cyl_PolyRadiusX",&fi)){ |
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33 | XOPNotice("Error at GetFunctionInfo\r"); |
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34 | return err; |
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35 | } |
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36 | requiredParameterTypes[1] = NT_FP64; |
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37 | requiredParameterTypes[0] = WAVE_TYPE; |
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38 | if (err = CheckFunctionForm(&fi, 2, requiredParameterTypes, &badParameterNumber, NT_FP64)){ |
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39 | XOPNotice("Error at CheckFunctionForm\r"); |
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40 | return err; |
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41 | } |
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42 | int ii; |
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43 | double nord,va,vb,summ,yyy,zi,Pi; |
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44 | double answer,Resoln,i_shad,i_qbar,i_sigq; |
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45 | |
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46 | Pi = 4.0*atan(1.0); |
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47 | |
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48 | i_shad = p->i_shad; |
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49 | i_qbar = p->i_qbar; |
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50 | i_sigq = p->i_sigq; |
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51 | |
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52 | //sprintf(buf, "i_shad = %g, i_qbar = %g, i_sigq = %g", i_shad, i_qbar, i_sigq); |
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53 | //XOPNotice(buf); |
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54 | |
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55 | pp.waveHandle = p->waveHandle; |
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56 | pp.x = p->x; |
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57 | //need interpolation |
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58 | |
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59 | if (i_sigq >= 0){ |
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60 | |
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61 | nord = 20; |
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62 | va = -3*i_sigq + i_qbar; |
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63 | if (va < 0){ |
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64 | va = 0; |
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65 | } |
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66 | vb = 3*i_sigq + i_qbar; |
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67 | |
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68 | summ = 0.0; |
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69 | ii=0; |
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70 | while (ii < nord) { |
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71 | zi = (Gauss20Z[ii]*(vb-va) + va + vb)/2.0; |
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72 | pp.x = zi; |
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73 | Resoln = i_shad/sqrt(2*Pi*i_sigq*i_sigq); |
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74 | Resoln *= exp((-1*pow((zi-i_qbar),2))/(2*i_sigq*i_sigq)); |
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75 | if (err = CallFunction(&fi, (void*)&pp, &ans)){ |
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76 | XOPNotice("Error at CallFunction in Gaussian Smear\r"); |
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77 | return err; |
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78 | } |
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79 | // CallFunction(&fi, (void*)&pp, &ans); |
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80 | yyy = Gauss20Wt[ii]*Resoln*ans; |
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81 | summ += yyy; |
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82 | |
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83 | ii++; |
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84 | } |
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85 | answer = (vb-va)/2.0*summ; |
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86 | } else { |
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87 | //USANS so do trapezoidal integration |
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88 | int maxiter = 20; |
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89 | double tol = 1e-4; |
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90 | |
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91 | va=0; |
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92 | vb=fabs(i_sigq); |
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93 | |
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94 | //sprintf(buf, "i_sigq = %g, va = %g, vb = %g\r",i_sigq, va, vb); |
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95 | //XOPNotice("USANS Data. Great\r"); |
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96 | //XOPNotice(buf); |
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97 | |
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98 | answer = qtrap_USANS(fi,pp,va,vb,tol,maxiter); |
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99 | answer /= vb; |
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100 | } |
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101 | |
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102 | |
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103 | p->result = answer; |
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104 | |
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105 | return 0; |
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106 | } |
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107 | |
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108 | int Smear_Model_76_X(GenSmearParamsPtr p) |
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109 | { |
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110 | PassParams pp; |
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111 | FunctionInfo fi; |
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112 | int badParameterNumber; |
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113 | int requiredParameterTypes[2]; |
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114 | int err; |
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115 | double ans; |
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116 | //char buf[256]; |
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117 | |
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118 | //Get name of function into string here with |
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119 | char func[255]; |
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120 | GetCStringFromHandle(p->funcname, func, sizeof(func)); |
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121 | |
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122 | //Make sure function that we want to call exists |
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123 | //GetFunctionInfo(func,&fi); |
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124 | if (err = GetFunctionInfo(func,&fi)){ |
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125 | // if (err = GetFunctionInfo("Cyl_PolyRadiusX",&fi)){ |
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126 | XOPNotice("Error at GetFunctionInfo\r"); |
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127 | return err; |
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128 | } |
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129 | requiredParameterTypes[1] = NT_FP64; |
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130 | requiredParameterTypes[0] = WAVE_TYPE; |
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131 | if (err = CheckFunctionForm(&fi, 2, requiredParameterTypes, &badParameterNumber, NT_FP64)){ |
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132 | XOPNotice("Error at CheckFunctionForm\r"); |
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133 | return err; |
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134 | } |
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135 | int ii; |
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136 | double nord,va,vb,summ,yyy,zi,Pi; |
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137 | double answer,Resoln,i_shad,i_qbar,i_sigq; |
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138 | |
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139 | Pi = 4.0*atan(1.0); |
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140 | |
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141 | i_shad = p->i_shad; |
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142 | i_qbar = p->i_qbar; |
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143 | i_sigq = p->i_sigq; |
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144 | |
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145 | //sprintf(buf, "i_shad = %g, i_qbar = %g, i_sigq = %g", i_shad, i_qbar, i_sigq); |
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146 | //XOPNotice(buf); |
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147 | |
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148 | pp.waveHandle = p->waveHandle; |
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149 | pp.x = p->x; |
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150 | //need interpolation |
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151 | |
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152 | if (i_sigq >= 0){ |
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153 | |
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154 | nord = 20; |
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155 | va = -3*i_sigq + i_qbar; |
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156 | if (va < 0){ |
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157 | va = 0; |
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158 | } |
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159 | vb = 3*i_sigq + i_qbar; |
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160 | |
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161 | summ = 0.0; |
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162 | ii=0; |
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163 | while (ii < nord) { |
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164 | zi = (Gauss76Z[ii]*(vb-va) + va + vb)/2.0; |
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165 | pp.x = zi; |
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166 | Resoln = i_shad/sqrt(2*Pi*i_sigq*i_sigq); |
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167 | Resoln *= exp((-1*pow((zi-i_qbar),2))/(2*i_sigq*i_sigq)); |
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168 | if (err = CallFunction(&fi, (void*)&pp, &ans)){ |
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169 | XOPNotice("Error at CallFunction in Gaussian Smear\r"); |
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170 | return err; |
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171 | } |
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172 | // CallFunction(&fi, (void*)&pp, &ans); |
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173 | yyy = Gauss76Wt[ii]*Resoln*ans; |
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174 | summ += yyy; |
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175 | |
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176 | ii++; |
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177 | } |
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178 | answer = (vb-va)/2.0*summ; |
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179 | } else { |
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180 | //USANS so do trapezoidal integration |
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181 | int maxiter = 20; |
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182 | double tol = 1e-4; |
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183 | |
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184 | va=0; |
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185 | vb=fabs(i_sigq); |
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186 | |
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187 | //sprintf(buf, "i_sigq = %g, va = %g, vb = %g\r",i_sigq, va, vb); |
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188 | //XOPNotice("USANS Data. Great\r"); |
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189 | //XOPNotice(buf); |
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190 | |
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191 | answer = qtrap_USANS(fi,pp,va,vb,tol,maxiter); |
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192 | answer /= vb; |
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193 | } |
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194 | |
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195 | |
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196 | p->result = answer; |
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197 | |
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198 | return 0; |
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199 | } |
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200 | |
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201 | |
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202 | double |
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203 | qtrap_USANS(FunctionInfo fi, PassParams p, double aa, double bb, double eps, int maxit){ |
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204 | double olds,ss; |
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205 | double xx,tnm,summ,del,arg1,arg2,ans; |
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206 | int it,jj,kk; |
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207 | int err; |
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208 | |
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209 | //char buf[256]; |
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210 | |
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211 | double qval = p.x; |
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212 | double temp = 0; |
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213 | |
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214 | //XOPNotice("In qtrap_USANS\r"); |
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215 | |
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216 | olds = -1e-30; |
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217 | for (jj = 1; jj <= maxit; jj++){ |
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218 | |
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219 | if (jj == 1){ |
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220 | arg1 = pow(qval,2)+pow(aa,2); |
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221 | arg2 = pow(qval,2)+pow(bb,2); |
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222 | p.x = sqrt(arg1); |
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223 | if (err = CallFunction(&fi, (void*)&p, &ans)){ |
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224 | XOPNotice("Error at 1st CallFunction in qtrap\r"); |
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225 | } |
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226 | temp = ans; |
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227 | p.x = sqrt(arg2); |
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228 | CallFunction(&fi, (void*)&p, &ans); |
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229 | temp += ans; |
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230 | ss = 0.5*(bb-aa)*temp; |
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231 | //sprintf(buf, "jj = 1: aa = %g, bb = %g, temp = %g, ss = %g\r", aa, bb, temp, ss); |
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232 | //XOPNotice(buf); |
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233 | } else { |
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234 | it = pow(2,jj-2); |
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235 | tnm = (double)it; |
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236 | del = (bb-aa)/tnm; |
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237 | xx = aa+(0.5*del); |
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238 | summ = 0; |
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239 | for (kk = 1; kk <= it; kk++){ |
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240 | arg1 = pow(qval,2)+pow(xx,2); |
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241 | p.x = sqrt(arg1); |
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242 | if (err = CallFunction(&fi, (void*)&p, &ans)){ |
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243 | XOPNotice("Error at 2nd CallFunction in qtrap\r"); |
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244 | } |
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245 | summ += ans; |
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246 | xx += del; |
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247 | } |
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248 | ss = 0.5*(ss+(bb-aa)*summ/tnm); |
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249 | //sprintf(buf, "jj = %d: arg1 = %g, summ = %g, tnm= %g, ss = %g\r", jj, arg1, summ, tnm, ss); |
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250 | //XOPNotice(buf); |
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251 | } |
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252 | |
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253 | //sprintf(buf,"ss = %g\r",ss); |
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254 | //XOPNotice(buf); |
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255 | |
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256 | // ss = trapzd_USANS(fi,p,aa,bb,jj); |
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257 | if ( fabs(ss-olds) < eps*fabs(olds)) |
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258 | return ss; |
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259 | if ( (ss == 0.0) && (olds == 0.0) && (jj > 6) ) // no progress? |
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260 | return ss; |
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261 | olds = ss; |
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262 | } |
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263 | |
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264 | XOPNotice("Maxit exceeded in qtrap. If you're here, there was a problem in qtrap"); |
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265 | return (ss); // should never get here if function is well behaved |
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266 | |
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267 | } |
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268 | |
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269 | //static double |
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270 | //trapzd_USANS(FunctionInfo fi, PassParams p, double aa, double bb, int nn){ |
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271 | // double xx,tnm,summ,del,arg1,arg2,ans; |
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272 | // int it,jj; |
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273 | // |
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274 | // static double sval; |
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275 | // |
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276 | // double qval = p.x; |
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277 | // double temp = 0; |
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278 | // |
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279 | // //XOPNotice("In trapzd_USANS\r"); |
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280 | // |
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281 | // if (nn == 1){ |
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282 | // arg1 = pow(qval,2)+pow(aa,2); |
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283 | // arg2 = pow(qval,2)+pow(bb,2); |
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284 | // p.x = arg1; |
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285 | // CallFunction(&fi, (void*)&p, &ans); |
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286 | // p.x = arg2; |
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287 | // temp = ans; |
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288 | // CallFunction(&fi, (void*)&p, &ans); |
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289 | // temp += ans; |
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290 | // sval = 0.5*(bb-aa); |
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291 | // return sval; |
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292 | // } else { |
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293 | // it = pow(2,nn-2); |
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294 | // tnm = it; |
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295 | // del = (bb-aa)/tnm; |
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296 | // xx = aa+0.5*del; |
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297 | // summ = 0; |
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298 | // for (jj = 1; jj <= it; jj++){ |
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299 | // arg1 = pow(qval,2)+pow(xx,2); |
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300 | // p.x = arg1; |
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301 | // CallFunction(&fi, (void*)&p, &ans); |
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302 | // summ += ans; |
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303 | // xx += del; |
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304 | // } |
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305 | // sval = 0.5*(sval+(bb-aa)*summ/tnm); |
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306 | // return sval; |
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307 | // } |
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308 | // |
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309 | // |
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310 | //} |
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311 | |
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312 | |
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313 | #pragma XOP_RESET_STRUCT_PACKING // All structures are 2-byte-aligned. |
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314 | // All structures are 2-byte-aligned. |
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