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#include <stdio.h>
#include "real.h"
#include <math.h>
/*
* Tests the cos_R when applied to a rational a real expressed
* by a sign, a characteristic pair and a vector.
*/
main(int argc, char *argv[])
{
Real x, y, z;
double f;
Real makeRealSignCNQInt(Sign, char *, int, int, int);
MyName = argv[0];
if (argc != 7) {
fprintf(stderr, "%s <sign> <c> <n> <a> <b> <ndigits>\n", MyName);
exit(1);
}
initReals();
#ifdef NOT_NOW
y = makeRealSignCNQInt(
atoi(argv[1]), /* sign */
argv[2], /* c */
atoi(argv[3]), /* n */
atoi(argv[4]), /* a */
atoi(argv[5])); /* b */
#endif
y = vector_Int(atoi(argv[4]), atoi(argv[5]));
print_R_Dec(y, atoi(argv[6]));
printf("\n");
f = realToDouble(y);
printf("x=%f\n",f);
x = cos_R(y);
x = mul_R_R(x, x);
z = sin_R(y);
z = mul_R_R(z, z);
x = add_R_R(x, z);
x = sqrt_R(x);
print_R_Dec(x, atoi(argv[6]));
printf("\n");
printf("t1(x)=%f\n", sqrt(cos(f)*cos(f) + sin(f)*sin(f)));
}
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