C#的winform矩阵简单运算
程序截图
![C#的winform矩阵简单运算-LMLPHP]( "C#的winform矩阵简单运算-LMLPHP")
![C#的winform矩阵简单运算-LMLPHP]( "C#的winform矩阵简单运算-LMLPHP")
关键代码
using System;
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;
namespace MatrixMultiplication {
public partial class MainForm : Form {
public MainForm() {
InitializeComponent();
}
int[,] A = new int[100,100];
int[,] B = new int[100,100];
int[,] AB = new int[100,100];
int[,] C = new int[100,100];
int[,] D = new int[100,100];
int A_row = 0,A_col = 0;
int B_row = 0,B_col = 0;
int C_row = 0,C_col = 0;
int D_row = 0,D_col = 0;
int AB_row = 0,AB_col = 0;
public void readMatrix(TextBox other,char towhere){
if(towhere == 'A') {
string[] arr = new string[other.Lines.Length];
for(int i = 0; i < other.Lines.Length; i++) {
arr[i] = other.Lines[i];
}
string[] tem = arr[0].Split();
A_col = tem.Length;
A_row = other.Lines.Length;
for(int i = 0; i < A_row; i++) {
string[] temp = arr[i].Split();
for(int j = 0; j < A_col; j++) {
A[i,j] = Convert.ToInt32(temp[j]);
}
}
}
else if(towhere == 'B') {
string[] arr = new string[other.Lines.Length];
for(int i = 0; i < other.Lines.Length; i++) {
arr[i] = other.Lines[i];
}
string[] tem = arr[0].Split();
B_col = tem.Length;
B_row = other.Lines.Length;
for(int i = 0; i < B_row; i++) {
string[] temp = arr[i].Split();
for(int j = 0; j < B_col; j++) {
B[i,j] = Convert.ToInt32(temp[j]);
}
}
}
else if(towhere == 'C') {
string[] arr = new string[other.Lines.Length];
for(int i = 0; i < other.Lines.Length; i++) {
arr[i] = other.Lines[i];
}
string[] tem = arr[0].Split();
C_col = tem.Length;
C_row = other.Lines.Length;
for(int i = 0; i < C_row; i++) {
string[] temp = arr[i].Split();
for(int j = 0; j < C_col; j++) {
C[i,j] = Convert.ToInt32(temp[j]);
}
}
}
}
public void compute(char Char) {
if(Char == '*') {
AB_row = A_row;
AB_col = B_col;
for(int i = 0; i < AB_row; i++) {
for(int j = 0; j < AB_col; j++) {
AB[i,j] = 0;
for(int k = 0; k < A_col; k++) {
AB[i,j] += A[i,k] * B[k,j];
}
}
}
}
else if(Char == '+') {
AB_row = A_row;
AB_col = A_col;
for(int i = 0; i < AB_row; i++) {
for(int j = 0; j < AB_col; j++) {
AB[i,j] = A[i,j] + B[i,j];
}
}
}
else if(Char == '-') {
AB_row = A_row;
AB_col = A_col;
for(int i = 0; i < AB_row; i++) {
for(int j = 0; j < AB_col; j++) {
AB[i,j] = A[i,j] - B[i,j];
}
}
}
}
private void button1_Click(object sender,EventArgs e) {
if(BoxA.Text == "" || BoxB.Text == "") {
MessageBox.Show("请输入数据","提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
return;
}
readMatrix(BoxA,'A');
readMatrix(BoxB,'B');
if((A_row != B_col) || (A_col != B_row)) {
MessageBox.Show("行列规则不符合","提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
return;
}
BoxAB.Text = "";
compute('*');
for(int i = 0; i < AB_row; i++) {
for(int j = 0; j < AB_col; j++) {
BoxAB.Text += AB[i,j].ToString();
BoxAB.Text += " ";
}
BoxAB.Text += "\r\n";
}
}
private void btnClear_Click(object sender,EventArgs e) {
A_row = 0; A_col = 0;
B_row = 0; B_col = 0;
AB_row = 0; AB_col = 0;
BoxA.Text = "";
BoxB.Text = "";
BoxAB.Text = "";
}
private void Add_Click(object sender,EventArgs e) {
if(BoxA.Text == "" || BoxB.Text == "") {
MessageBox.Show("请输入数据","提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
return;
}
readMatrix(BoxA,'A');
readMatrix(BoxB,'B');
if((A_row != B_row) || (A_col != B_col)) {
MessageBox.Show("行列规则不符合","提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
return;
}
BoxAB.Text = "";
compute('+');
for(int i = 0; i < AB_row; i++) {
for(int j = 0; j < AB_col; j++) {
BoxAB.Text += AB[i,j].ToString();
BoxAB.Text += " ";
}
BoxAB.Text += "\r\n";
}
}
private void Minus_Click(object sender,EventArgs e) {
if(BoxA.Text == "" || BoxB.Text == "") {
MessageBox.Show("请输入数据","提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
return;
}
readMatrix(BoxA,'A');
readMatrix(BoxB,'B');
if((A_row != B_row) || (A_col != B_col)) {
MessageBox.Show("行列规则不符合","提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
return;
}
BoxAB.Text = "";
compute('-');
for(int i = 0; i < AB_row; i++) {
for(int j = 0; j < AB_col; j++) {
BoxAB.Text += AB[i,j].ToString();
BoxAB.Text += " ";
}
BoxAB.Text += "\r\n";
}
}
private void Trspos_Click(object sender,EventArgs e) {
if(BoxC.Text == "") {
MessageBox.Show("请输入数据","提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
return;
}
readMatrix(BoxC,'C');
#region 转置算法
D_row = C_col;
D_col = C_row;
for(int i = 0; i < C_row; i++) {
for(int j = 0; j < C_col; j++) {
D[j,i] = C[i,j];
}
}
#endregion
BoxD.Text = "";
for(int i = 0; i < D_row; i++) {
for(int j = 0; j < D_col; j++) {
BoxD.Text += D[i,j].ToString();
BoxD.Text += " ";
}
BoxD.Text += "\r\n";
}
}
private void MatrixReturn_Click(object sender,EventArgs e) {
if(BoxC.Text == "") {
MessageBox.Show("请输入数据","提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
return;
}
readMatrix(BoxC,'C');
if(C_row!=C_col){
MessageBox.Show("该矩阵没有逆矩阵","提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
return;
}
#region 创建double类型二维数组作为结果
double y = 1.0;
double tem,x;
double[,] Return = new double[C_row,C_col*2];
#endregion
#region 求逆算法
for(int i = 0; i < C_row; i++) {
for(int j = 0; j < (2 * C_col); j++) {
if(j < C_row)
Return[i,j] = Convert.ToDouble(C[i,j]);
else if(j == C_row + i)
Return[i,j] = 1.0;
else
Return[i,j] = 0.0;
}
}
for(int i = 0; i < C_row; i++) {
for(int k = 0; k < C_row; k++) {
if(k != i) {
tem = Return[k,i] / Return[i,i];
for(int j = 0; j < (2 * C_row); j++) {
x = Return[i,j] * tem;
Return[k,j] -= x;
}
}
}
}
for(int i = 0; i < C_row; i++) {
tem = Return[i,i];
for(int j = 0; j < (2 * C_row); j++) {
Return[i,j] /= tem;
}
}
for(int i = 0; i < C_row; i++) {
y *= Return[i,i];
}
#endregion
if(y == 0) {
MessageBox.Show("该矩阵没有逆矩阵","提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
return;
}
BoxD.Text = "";
for(int i = 0; i < C_row; i++) {
for(int j = 0; j < C_row; j++) {
BoxD.Text += Return[i,j + C_row].ToString("f2");
BoxD.Text += " ";
}
BoxD.Text += "\r\n";
}
}
private void btnClear2_Click(object sender,EventArgs e) {
BoxC.Text = "";
BoxD.Text = "";
C_row = 0;C_col = 0;
D_row = 0;D_col = 0;
}
}
}
完整工程
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