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AZEN-SGG 2025-04-30 12:01:55 +03:00
parent 135f27f63d
commit 8e114b5c29
17 changed files with 328 additions and 90 deletions
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2025.05.02/01Ex/solve.c Normal file
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#include "solve.h"
#include "status.h"
#include <math.h>
#include <float.h>
status t1_solve (
double (*f) (double),
double a, double b,
double eps, int m, double *x, int *m_it
) {
int it = 0;
status ret = SUCCESS;
double c = DBL_MAX, y, y_a = f(a), y_b = f(b);
if (y_a * y_b >= -DBL_EPSILON)
{
*x = DBL_MAX;
return MORE_ONE_ROOT;
}
for (it = 0; it < m; ++it)
{
c = (a + b) * 0.5;
y = f(c);
if (fabs(y) < eps)
{
ret = SUCCESS;
break;
} else if ((fabs(c - a) < DBL_EPSILON) || (fabs(c - b) < DBL_EPSILON))
{
ret = HIGH_ERROR;
break;
} else if (y * y_a > DBL_EPSILON)
{
a = c;
y_a = y;
} else if (y * y_b > DBL_EPSILON)
{
b = c;
y_b = y;
}
}
if (it >= m)
ret = RUN_TIME;
*x = c;
*m_it = it;
return ret;
}