Mathc initiation/Fichiers c : c76cj
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c01j.c |
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/* --------------------------------- */
/* save as c1j.c */
/* --------------------------------- */
#include "x_hfile.h"
#include "fj.h"
/* --------------------------------- */
int main(void)
{
double c = 1;
clrscrn();
printf(" f : x-> %s\n\n"
" Df : x-> %s\n\n\n", feq, Dfeq);
printf(" Compute the derivative of f when x = %0.3f\n\n", c);
printf(" with Df(%0.3f) = %0.8f \n",c, Df(c));
printf(" with fx_x(%0.3f) = %0.8f\n\n\n",c, fx_x(f,c,H));
stop();
return 0;
}
/* ---------------------------------- */
/* ---------------------------------- */
Calculons la dérivé :
f : x-> sinh(x)
Df : x-> cosh(x)
Compute the derivative of f when x = 1.000
with Df(1.000) = 1.54308063
with fx_x(1.000) = 1.54308064
Press return to continue.
Calculons la dérivé :
y = sinh(x)
e**x - e**(-x)
y = --------------
2
e**x - e**(-x)
y'= ( -------------- )'
2
e**x - (-e**(-x))
y'= ----------------
2
e**x + e**(-x)
y'= ----------------
2
y'= cosh(x)