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add numerical recipes library

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yenru0
2025-09-12 18:55:25 +09:00
parent d4dff245bd
commit 2c75620ec9
1344 changed files with 63869 additions and 0 deletions
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40
lib/nr/ansi/recipes/bcucof.c Normal file
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@@ -0,0 +1,40 @@
void bcucof(float y[], float y1[], float y2[], float y12[], float d1, float d2,
float **c)
{
static int wt[16][16]=
{ 1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,
-3,0,0,3,0,0,0,0,-2,0,0,-1,0,0,0,0,
2,0,0,-2,0,0,0,0,1,0,0,1,0,0,0,0,
0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,
0,0,0,0,-3,0,0,3,0,0,0,0,-2,0,0,-1,
0,0,0,0,2,0,0,-2,0,0,0,0,1,0,0,1,
-3,3,0,0,-2,-1,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,-3,3,0,0,-2,-1,0,0,
9,-9,9,-9,6,3,-3,-6,6,-6,-3,3,4,2,1,2,
-6,6,-6,6,-4,-2,2,4,-3,3,3,-3,-2,-1,-1,-2,
2,-2,0,0,1,1,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,2,-2,0,0,1,1,0,0,
-6,6,-6,6,-3,-3,3,3,-4,4,2,-2,-2,-2,-1,-1,
4,-4,4,-4,2,2,-2,-2,2,-2,-2,2,1,1,1,1};
int l,k,j,i;
float xx,d1d2,cl[16],x[16];
d1d2=d1*d2;
for (i=1;i<=4;i++) {
x[i-1]=y[i];
x[i+3]=y1[i]*d1;
x[i+7]=y2[i]*d2;
x[i+11]=y12[i]*d1d2;
}
for (i=0;i<=15;i++) {
xx=0.0;
for (k=0;k<=15;k++) xx += wt[i][k]*x[k];
cl[i]=xx;
}
l=0;
for (i=1;i<=4;i++)
for (j=1;j<=4;j++) c[i][j]=cl[l++];
}