Lab5_Task2

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <iostream>
#include <math.h>

int main() {
	setlocale(0, "Russian");

	short n = 1;
	float leftLimit = 2, rightLimit = 3, eps = pow(10, -5), x, yLeft, yRight, y;
	puts("Изначальное положение.");
	printf("Левая граница: %f\n", leftLimit);
	printf("Правая граница: %f\n", rightLimit);
	puts("########################################");

	x = (leftLimit + rightLimit) / 2;
	yLeft = 3 * sin(sqrt(leftLimit)) + 0.35*leftLimit - 3.8;
	yRight = 3 * sin(sqrt(rightLimit)) + 0.35*rightLimit - 3.8;
	y = 3 * sin(sqrt(x)) + 0.35*x - 3.8;

	while ( fabs(yLeft - yRight) > eps ) {
		if ( y*yRight < 0 )
			leftLimit = x;
		else
			rightLimit = x;
		printf("Итерация номер %d\n", n);
		printf("Левая граница: %f\n", leftLimit);
		printf("Правая граница: %f\n", rightLimit);
		puts("########################################");

		x = (leftLimit + rightLimit) / 2;
		y = 3 * sin(sqrt(x)) + 0.35*x - 3.8;
		yLeft = 3 * sin(sqrt(leftLimit)) + 0.35*leftLimit - 3.8;
		yRight = 3 * sin(sqrt(rightLimit)) + 0.35*rightLimit - 3.8;
		n++;
	}

	puts("");
	y = 3 * sin(sqrt(x)) + 0.35*x - 3.8;
	if (fabs(y) > eps)
		printf("Корень найден неверно\n");
	else
		printf("Корень = %f\nНайден после %d итераций\n", x, n-1);
	printf("y(%2.2f) = %f\n", x, y);

	puts("");
	system("pause");
	return 0;
}