lefirea

#include<stdio.h>
#include<math.h>

#define PI 3.141592653589793

int menu();
void msin();
void mcos();
void mexp();
double fact(int x); //階乗計算。念のため返り値は少数型

lefirea

using System;
using System.IO;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;