Mathc initiation/a326
Apparence
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c00b3.c |
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/* ---------------------------------- */
/* save as c00b3.c */
/* ---------------------------------- */
#include "x_hfile.h"
#include "fb.h"
/* ---------------------------------- */
int main(void)
{
double Ix = lint3d_ds( yyplszzf, g,h,k, a,b,LOOP);
double Iy = lint3d_ds( xxplszzf, g,h,k, a,b,LOOP);
double Iz = lint3d_ds( xxplsyyf, g,h,k, a,b,LOOP);
clrscrn();
printf(" If a thin wire has the shape of a curve C\n");
printf(" and if the linear mass density at (x,y,z) is F(x,y,z),\n");
printf(" find the moments of inertia Ix Iy and Iz with the respect to\n");
printf(" the x-y- and z-axes, respectively.\n\n");
printf(" With :\n\n");
printf(" F (x,y,z) -> %s \n\n", feq);
printf(" and C has the parametrization :\n\n\n");
printf(" x = %s; y = %s; z = %s; %.1f < t =< %.1f \n\n\n",
geq, heq, keq, a, b);
stop();
clrscrn();
printf(" Compute the moment Ix.\n\n");
printf(" (\n");
printf(" Ix = int( (y**2+z**2) F(x,y) ds = %+.3f\n", Ix);
printf(" (C\n\n");
printf(" Compute the moment Iy.\n\n");
printf(" (\n");
printf(" Iy = int( (x**2+z**2) F(x,y) ds = %+.3f\n", Iy);
printf(" (C\n\n");
printf(" Compute the moment Iz.\n\n");
printf(" (\n");
printf(" Iz = int( (x**2+y**2) F(x,y) ds = %+.3f\n", Iz);
printf(" (C\n\n");
stop();
return 0;
}
/* ---------------------------------- */
/* ---------------------------------- */
Exemple de sortie écran :
If a thin wire has the shape of a curve C
and if the linear mass density at (x,y,z) is F(x,y,z),
find the moments of inertia Ix Iy and Iz with the respect to
the x-y- and z-axes, respectively.
With :
F (x,y,z) -> 1
and C has the parametrization :
x = cos(t); y = sin(t); z = (t); 0.0 < t =< 9.4
Press return to continue.
Exemple de sortie écran :
Compute the moment Ix.
(
Ix = int( (y**2+z**2) F(x,y) ds = +401.310
(C
Compute the moment Iy.
(
Iy = int( (x**2+z**2) F(x,y) ds = +401.310
(C
Compute the moment Iz.
(
Iz = int( (x**2+y**2) F(x,y) ds = +13.329
(C
Press return to continue.