37 lines
1.0 KiB
C++
37 lines
1.0 KiB
C++
#include "mainwindow.h"
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#include "ui_mainwindow.h"
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#include <QDebug>
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#include <cmath>
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MainWindow::MainWindow(QWidget *parent)
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: QMainWindow(parent), ui(new Ui::MainWindow) {
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ui->setupUi(this);
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//设置TAB顺序
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setTabOrder(ui->equal, ui->x0);
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setTabOrder(ui->x0, ui->x1);
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setTabOrder(ui->x1, ui->w0);
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setTabOrder(ui->w0, ui->w1);
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setTabOrder(ui->w1, ui->b);
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setTabOrder(ui->b, ui->equal);
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}
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MainWindow::~MainWindow() { delete ui; }
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void MainWindow::on_equal_clicked() {
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double num = ui->x0->value() * ui->w0->value() +
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ui->x1->value() * ui->w1->value() + ui->b->value();
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qDebug() << num;
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num = sigmoid(num);
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ui->result->setText(QString::number(num, 'f', 16));
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ui->list->addItem("f(" + QString::number(ui->x0->value(), 'f', 2) + "," +
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QString::number(ui->x1->value(), 'f', 2) +
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")=" + QString::number(num, 'f', 2));
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}
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double MainWindow::sigmoid(double x) { return 1 / (1 + exp(-x)); }
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void MainWindow::on_action_triggered() { ui->list->clear(); }
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