lizfcm/test/roots.t.c

18 lines
387 B
C

#include "lizfcm.test.h"
#include <stdio.h>
double g(double x) { return x * x - 9; }
UTEST(ivt, find_interval) {
double *range = find_ivt_range(&g, -100.0, 1.0, 200);
EXPECT_LT(g(range[0]) * g(range[1]), 0);
free(range);
}
UTEST(root, bisection_with_error_assumption) {
double root = bisect_find_root_with_error_assumption(&g, -5, 0, 0.01);
EXPECT_NEAR(-3, root, 0.01);
}