Simple/Scientific/Graph setup

Calculator/.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties

Calculator/app/.gitignore

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+/build

Calculator/app/build.gradle

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+plugins {
+    id 'com.android.application'
+    id 'org.jetbrains.kotlin.android'
+}
+
+android {
+    compileSdk 32
+
+    defaultConfig {
+        applicationId "com.example.calculator"
+        minSdk 16
+        targetSdk 32
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+    buildFeatures {
+        viewBinding true
+    }
+}
+
+dependencies {
+
+    implementation 'androidx.core:core-ktx:1.7.0'
+    implementation 'androidx.appcompat:appcompat:1.4.2'
+    implementation 'com.google.android.material:material:1.6.1'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
+    implementation 'androidx.navigation:navigation-fragment-ktx:2.3.5'
+    implementation 'androidx.navigation:navigation-ui-ktx:2.3.5'
+    implementation files('libs\\GraphView-4.0.1.jar')
+    testImplementation 'junit:junit:4.13.2'
+    implementation 'net.objecthunter:exp4j:0.4.5'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+    implementation 'io.apisense:rhino-android:1.0'
+    implementation 'com.intuit.ssp:ssp-android:1.0.5'
+    implementation 'com.intuit.sdp:sdp-android:1.0.5'
+}

Calculator/app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

Calculator/app/src/androidTest/java/com/example/calculator/ExampleInstrumentedTest.kt

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+package com.example.calculator
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.example.calculator", appContext.packageName)
+    }
+}

Calculator/app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.calculator">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.Calculator">
+        <activity
+            android:name=".PlottingGraph"
+            android:exported="false"
+            android:parentActivityName=".Graph" />
+        <activity
+            android:name=".Graph"
+            android:exported="false"
+            android:parentActivityName=".MainActivity" />
+        <activity
+            android:name=".MainActivity2"
+            android:exported="false"
+            android:label="@string/title_activity_main2"
+            android:theme="@style/Theme.Calculator.NoActionBar" />
+        <activity
+            android:name=".MainActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

Calculator/app/src/main/java/com/example/calculator/Graph.kt

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+package com.example.calculator
+
+import android.content.Intent
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import android.view.View
+import android.widget.Button
+import android.widget.EditText
+import android.widget.TextView
+
+class Graph : AppCompatActivity() {
+
+    private lateinit var value: TextView
+
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_graph)
+
+        val actionBar = supportActionBar
+        actionBar!!.title = "Graph"
+
+        actionBar.setDisplayHomeAsUpEnabled(true)
+
+        value = findViewById(R.id.value)
+    }
+
+    fun onClick(view: View) {
+        value.append((view as Button).text)
+    }
+
+    fun onGraphPlot(view: View) {
+        val intent = Intent(this, PlottingGraph::class.java)
+        val value = value.text.toString()
+        intent.putExtra("value_key", value)
+        startActivity(intent)
+    }
+}