1 files changed, 39 insertions, 0 deletions
diff --git a/5_3.c b/5_3.c
new file mode 100644
index 0000000..bc91e08
--- /dev/null
+++ b/5_3.c
@@ -0,0 +1,39 @@
+#include <stdio.h>
+#include <time.h>
+
+#include "matrix.h"
+
+int main(void) {
+	srand(time(NULL));
+	// выбираем размер матрицы
+size_selection:
+	printf("Input the size of the matrixes:\n");
+	isz size;
+	scanf("%zu", &size);
+	if (size < 0) {
+		SKIP_INPUT;
+		goto size_selection;
+	}
+	// выбираем интервал для генерации случайных чисел
+interval_selection:
+	SKIP_INPUT;
+	printf("Input the borders of the interval for generated values, separated by a whitespace:\n");
+	double a, b;
+	if (scanf("%lf %lf", &a, &b) != 2) goto interval_selection;
+	// создаём матрицы
+	struct tumatrix A = tumatrix_new(size);
+	struct tumatrix B = tumatrix_new(size);
+	tumatrix_fill(&A, a, b);
+	tumatrix_fill(&B, a, b);
+	puts("A = "); tumatrix_print(&A);
+	puts("B = "); tumatrix_print(&B);
+	printf("det A = %lf\n", tumatrix_det(&A));
+	printf("det B = %lf\n", tumatrix_det(&B));
+	struct tumatrix C = tumatrix_mul(&A, &B);
+	puts("C = A*B = "); tumatrix_print(&C);
+	printf("det C = %lf\n", tumatrix_det(&C));
+	tumatrix_free(A);
+	tumatrix_free(B);
+	tumatrix_free(C);
+	return 0;
+}