From 54281c41b73da9b59bc7975057c7c089d0f6a2f2 Mon Sep 17 00:00:00 2001
From: sirrugh <krpdtmnt@gmail.com>
Date: Tue, 22 Oct 2024 21:13:34 +0700
Subject: [PATCH] update

---
 metnum_uts.cpp | 21 ++++++++++++++++-----
 metnum_uts.ui  | 17 ++++++++++++-----
 2 files changed, 28 insertions(+), 10 deletions(-)

diff --git a/metnum_uts.cpp b/metnum_uts.cpp
index 83d153d..7305e46 100644
--- a/metnum_uts.cpp
+++ b/metnum_uts.cpp
@@ -59,6 +59,7 @@ double metnum_uts::evaluateDerivative(const QString& functionString, double x) {
 void metnum_uts::on_pushButton_clicked()
 {
     ui->plainTextEdit->clear();
+    QString MaxIter = ui->MaxIter->text();
 
     QString selectedmetode = ui->comboBox->currentText();
     QString functionString = ui->Function->text();
@@ -101,7 +102,12 @@ void metnum_uts::on_pushButton_clicked()
 
         double c = a;
         int iteration = 0;
-        const int MAX_ITERATIONS = 1000;
+        const int MAX_ITERATIONS = MaxIter.toInt(&ok);
+
+        if (!ok) {
+            ui->plainTextEdit->appendPlainText("Max Iterations value is invalid");
+            return;
+        }
 
         while (iteration < MAX_ITERATIONS) {
             c = (a * fb - b * fa) / (fb - fa);
@@ -125,7 +131,7 @@ void metnum_uts::on_pushButton_clicked()
         }
 
         if (iteration == MAX_ITERATIONS) {
-            ui->plainTextEdit->appendPlainText("Max iteration");
+            ui->plainTextEdit->appendPlainText("Max iteration limit sudah tercapai");
         } else {
             ui->plainTextEdit->appendPlainText(QString("Root found at: %1").arg(c, 0, 'f', 6));
         }
@@ -146,7 +152,12 @@ void metnum_uts::on_pushButton_clicked()
 
         double x = x0;
         int iteration = 0;
-        const int MAX_ITERATIONS = 1000;
+        const int MAX_ITERATIONS = MaxIter.toInt(&ok);
+
+        if (!ok) {
+            ui->plainTextEdit->appendPlainText("Max Iterations value is invalid");
+            return;
+        }
 
         while (iteration < MAX_ITERATIONS) {
             double fx = evaluateFunction(functionString, x);
@@ -177,8 +188,8 @@ void metnum_uts::on_pushButton_clicked()
             iteration++;
         }
 
-        if (iteration >= MAX_ITERATIONS) {
-            ui->plainTextEdit->appendPlainText("Maximum iterations reached");
+        if (iteration == MAX_ITERATIONS) {
+            ui->plainTextEdit->appendPlainText("Max iteration limit sudah tercapai");
         }
     }
 }
diff --git a/metnum_uts.ui b/metnum_uts.ui
index e7a7618..a0e4852 100644
--- a/metnum_uts.ui
+++ b/metnum_uts.ui
@@ -15,7 +15,7 @@
   </property>
   <widget class="QWidget" name="centralwidget">
    <layout class="QGridLayout" name="gridLayout">
-    <item row="0" column="0" colspan="5">
+    <item row="0" column="0" colspan="6">
      <widget class="QComboBox" name="comboBox"/>
     </item>
     <item row="1" column="0">
@@ -56,22 +56,29 @@
      </widget>
     </item>
     <item row="1" column="4">
+     <widget class="QLineEdit" name="MaxIter">
+      <property name="placeholderText">
+       <string>Maximum Iteration (Hati - hati CPU Anda)</string>
+      </property>
+     </widget>
+    </item>
+    <item row="1" column="5">
      <widget class="QLineEdit" name="Error">
       <property name="text">
-       <string>0.0001</string>
+       <string>0.00001</string>
       </property>
       <property name="placeholderText">
        <string>Insert Error</string>
       </property>
      </widget>
     </item>
-    <item row="2" column="0" colspan="5">
+    <item row="2" column="0" colspan="6">
      <widget class="QPlainTextEdit" name="plainTextEdit"/>
     </item>
-    <item row="3" column="0" colspan="5">
+    <item row="3" column="0" colspan="6">
      <widget class="QLabel" name="label">
       <property name="text">
-       <string>Tips: Tidak bisa menggunakan pangkat (^) semua harus memakai perkalian (*). Untuk menggunakan Sin, Cos, Tan, dan kawan-kawannya bisa menggunakan sin(). Maximum Iterasi adalah 1000. Untuk Metode Newton Raphson, gunakan A untuk initial guess.</string>
+       <string>Tips: Tidak bisa menggunakan pangkat (^) semua harus memakai perkalian (*). Untuk menggunakan Sin, Cos, Tan, dan kawan-kawannya bisa menggunakan sin(). Untuk Metode Newton Raphson, gunakan A untuk initial guess. Normal Maximum Iteration=1000</string>
       </property>
       <property name="wordWrap">
        <bool>true</bool>