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xc = peak_pos(x_y_curve, &w, &y0, &A);
w *= 0.85;
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2Â¥2015-07-01 17:15:26
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2Â¥: Originally posted by feixiaolin at 2015-07-01 17:15:26
http://www.originlab.com/forum/post.asp?FORUM_ID=5&TOPIC_ID=7952&method=TopicQuote

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3Â¥2015-07-03 15:16:11
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feixiaolin

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3Â¥: Originally posted by һͷ¾ó¿ at 2015-07-03 15:16:11
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static double NAG_CALL f_callback(double t, Nag_User *comm)
{
struct user *sp = (struct user *)(comm->p);
double amp, center, widthG,widthL,xx; // temp variable to accept the parameters in the Nag_User communication struct
center = sp->center;
widthG = sp->widthG;
widthL = sp->widthL;
xx = sp->xx;
return exp( -t*t ) / (ln(2)*(widthL/widthG)*(widthL/widthG)+(2*sqrt(ln(2))*(xx-center)/widthG-t)*(2*sqrt(ln(2))*(xx-center)/widthG-t));
}

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