Mathc initiation/a29

Sommaire

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	fd.h

/* ---------------------------------- */
/* save as fd.h                       */
/* ---------------------------------- */
double f(
double x)
{
         return(2.*x - x*x);
}
char  feq[] =  "2.*x - x**2";
/* ---------------------------------- */
double g(
double x)
{
         return(0.);
}
char  geq[] =  "0.";
/* ---------------------------------- */
double h(
double x)
{
         return(x);
}
char  heq[] =  "x";
/* ---------------------------------- */
double VCylindricalShell(
double x)
{
/*
      Volume of a cylindrical shell = 2Pi(average radius)(altitude)(thickness)
*/

        return( 2 * PI * h(x) * ( (f(x)) - (g(x)) ) );
}
/* ---------------------------------- */
/* ---------------------------------- */