From 1fd0dce8d72c4d5869ce5ff4025ac09af603bc0f Mon Sep 17 00:00:00 2001 From: siddhu8990 Date: Wed, 19 Apr 2017 14:57:49 +0530 Subject: Merged Shamik's work --- .../elementaryFunctions/interpolation/dinterp1s.c | 26 ++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 src/c/elementaryFunctions/interpolation/dinterp1s.c (limited to 'src/c/elementaryFunctions/interpolation') diff --git a/src/c/elementaryFunctions/interpolation/dinterp1s.c b/src/c/elementaryFunctions/interpolation/dinterp1s.c new file mode 100644 index 00000000..17aeb876 --- /dev/null +++ b/src/c/elementaryFunctions/interpolation/dinterp1s.c @@ -0,0 +1,26 @@ +#include +#include "interp1.h" +double dinterp1s(double* x, int size, double* y,int size2, double xin, char* method,int size3) +{ + double x0=x[0]; + double x1=x[size-1]; + double y0=y[0]; + double y1=y[size2-1]; + double a = (y1 - y0) / (x1 - x0); + double b = ((-a)*x0) + y0; + double yout = 0.0; + yout=(double) ((a*xin) + b); + return yout; +} + +/* +int main(void) +{ + double x0=3, y0=0, x1=5, y1=8; + double x=4; + double y = linear_interpolation(x0, y0, x1, y1, x); + printf("(%f, %f), (%f, %f) for %f = %f\n", x0, y0, x1, y1, x, y); + return 0; + +} +*/ -- cgit