diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a881469
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,6 @@
+.gradle
+/local.properties
+/.idea
+.DS_Store
+/build
+/captures
diff --git a/ScientificCalculator/.idea/.name b/ScientificCalculator/.idea/.name
new file mode 100644
index 0000000..883c721
--- /dev/null
+++ b/ScientificCalculator/.idea/.name
@@ -0,0 +1 @@
+ScientificCalculator
\ No newline at end of file
diff --git a/ScientificCalculator/.idea/compiler.xml b/ScientificCalculator/.idea/compiler.xml
new file mode 100644
index 0000000..217af47
--- /dev/null
+++ b/ScientificCalculator/.idea/compiler.xml
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diff --git a/ScientificCalculator/.idea/copyright/profiles_settings.xml b/ScientificCalculator/.idea/copyright/profiles_settings.xml
new file mode 100644
index 0000000..e7bedf3
--- /dev/null
+++ b/ScientificCalculator/.idea/copyright/profiles_settings.xml
@@ -0,0 +1,3 @@
+
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+
\ No newline at end of file
diff --git a/ScientificCalculator/.idea/encodings.xml b/ScientificCalculator/.idea/encodings.xml
new file mode 100644
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--- /dev/null
+++ b/ScientificCalculator/.idea/encodings.xml
@@ -0,0 +1,5 @@
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diff --git a/ScientificCalculator/.idea/gradle.xml b/ScientificCalculator/.idea/gradle.xml
new file mode 100644
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--- /dev/null
+++ b/ScientificCalculator/.idea/gradle.xml
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diff --git a/ScientificCalculator/.idea/libraries/appcompat_v7_22_1_1.xml b/ScientificCalculator/.idea/libraries/appcompat_v7_22_1_1.xml
new file mode 100644
index 0000000..5c93ee4
--- /dev/null
+++ b/ScientificCalculator/.idea/libraries/appcompat_v7_22_1_1.xml
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diff --git a/ScientificCalculator/.idea/libraries/arity_2_1_7.xml b/ScientificCalculator/.idea/libraries/arity_2_1_7.xml
new file mode 100644
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--- /dev/null
+++ b/ScientificCalculator/.idea/libraries/arity_2_1_7.xml
@@ -0,0 +1,9 @@
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\ No newline at end of file
diff --git a/ScientificCalculator/.idea/libraries/javaluator_3_0_0.xml b/ScientificCalculator/.idea/libraries/javaluator_3_0_0.xml
new file mode 100644
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--- /dev/null
+++ b/ScientificCalculator/.idea/libraries/javaluator_3_0_0.xml
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diff --git a/ScientificCalculator/.idea/libraries/support_annotations_22_1_1.xml b/ScientificCalculator/.idea/libraries/support_annotations_22_1_1.xml
new file mode 100644
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diff --git a/ScientificCalculator/.idea/libraries/support_v4_22_1_1.xml b/ScientificCalculator/.idea/libraries/support_v4_22_1_1.xml
new file mode 100644
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--- /dev/null
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\ No newline at end of file
diff --git a/ScientificCalculator/.idea/misc.xml b/ScientificCalculator/.idea/misc.xml
new file mode 100644
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+++ b/ScientificCalculator/.idea/misc.xml
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diff --git a/ScientificCalculator/.idea/modules.xml b/ScientificCalculator/.idea/modules.xml
new file mode 100644
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+++ b/ScientificCalculator/.idea/modules.xml
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diff --git a/ScientificCalculator/.idea/scopes/scope_settings.xml b/ScientificCalculator/.idea/scopes/scope_settings.xml
new file mode 100644
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--- /dev/null
+++ b/ScientificCalculator/.idea/scopes/scope_settings.xml
@@ -0,0 +1,5 @@
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\ No newline at end of file
diff --git a/ScientificCalculator/.idea/vcs.xml b/ScientificCalculator/.idea/vcs.xml
new file mode 100644
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--- /dev/null
+++ b/ScientificCalculator/.idea/vcs.xml
@@ -0,0 +1,7 @@
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diff --git a/ScientificCalculator/.idea/workspace.xml b/ScientificCalculator/.idea/workspace.xml
new file mode 100644
index 0000000..aaa6c71
--- /dev/null
+++ b/ScientificCalculator/.idea/workspace.xml
@@ -0,0 +1,2138 @@
+
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+ android-19
+
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+ @style/AppTheme
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+ 1430870077108
+ 1430870077108
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diff --git a/ScientificCalculator/README.md b/ScientificCalculator/README.md
new file mode 100644
index 0000000..66a5cd2
--- /dev/null
+++ b/ScientificCalculator/README.md
@@ -0,0 +1 @@
+Scientific Calculator App
diff --git a/ScientificCalculator/ScientificCalculator.iml b/ScientificCalculator/ScientificCalculator.iml
new file mode 100644
index 0000000..0bb6048
--- /dev/null
+++ b/ScientificCalculator/ScientificCalculator.iml
@@ -0,0 +1,19 @@
+
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diff --git a/ScientificCalculator/ScientificCalculatorApp.iml b/ScientificCalculator/ScientificCalculatorApp.iml
new file mode 100644
index 0000000..0bb6048
--- /dev/null
+++ b/ScientificCalculator/ScientificCalculatorApp.iml
@@ -0,0 +1,19 @@
+
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diff --git a/ScientificCalculator/app/.gitignore b/ScientificCalculator/app/.gitignore
new file mode 100644
index 0000000..796b96d
--- /dev/null
+++ b/ScientificCalculator/app/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/ScientificCalculator/app/app.iml b/ScientificCalculator/app/app.iml
new file mode 100644
index 0000000..bf6dbdc
--- /dev/null
+++ b/ScientificCalculator/app/app.iml
@@ -0,0 +1,95 @@
+
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diff --git a/ScientificCalculator/app/build.gradle b/ScientificCalculator/app/build.gradle
new file mode 100644
index 0000000..9fcb35e
--- /dev/null
+++ b/ScientificCalculator/app/build.gradle
@@ -0,0 +1,26 @@
+apply plugin: 'com.android.application'
+
+android {
+ compileSdkVersion 22
+ buildToolsVersion "22.0.1"
+
+ defaultConfig {
+ applicationId "app.poojawins.c4q.nyc.scientificcalculator"
+ minSdkVersion 16
+ targetSdkVersion 22
+ versionCode 1
+ versionName "1.0"
+ }
+ buildTypes {
+ release {
+ minifyEnabled false
+ proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+ }
+ }
+}
+
+dependencies {
+ compile fileTree(dir: 'libs', include: ['*.jar'])
+ compile 'com.android.support:appcompat-v7:22.1.1'
+ compile 'com.fathzer:javaluator:3.0.0'
+}
diff --git a/ScientificCalculator/app/libs/arity-2.1.7.jar b/ScientificCalculator/app/libs/arity-2.1.7.jar
new file mode 100755
index 0000000..aecda2e
Binary files /dev/null and b/ScientificCalculator/app/libs/arity-2.1.7.jar differ
diff --git a/ScientificCalculator/app/proguard-rules.pro b/ScientificCalculator/app/proguard-rules.pro
new file mode 100644
index 0000000..567ea55
--- /dev/null
+++ b/ScientificCalculator/app/proguard-rules.pro
@@ -0,0 +1,17 @@
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in /Users/pooja/Library/Android/sdk/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+# http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# 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 *;
+#}
diff --git a/ScientificCalculator/app/src/androidTest/java/app/poojawins/c4q/nyc/scientificcalculator/ApplicationTest.java b/ScientificCalculator/app/src/androidTest/java/app/poojawins/c4q/nyc/scientificcalculator/ApplicationTest.java
new file mode 100644
index 0000000..f111e16
--- /dev/null
+++ b/ScientificCalculator/app/src/androidTest/java/app/poojawins/c4q/nyc/scientificcalculator/ApplicationTest.java
@@ -0,0 +1,13 @@
+package app.poojawins.c4q.nyc.scientificcalculator;
+
+import android.app.Application;
+import android.test.ApplicationTestCase;
+
+/**
+ * Testing Fundamentals
+ */
+public class ApplicationTest extends ApplicationTestCase {
+ public ApplicationTest() {
+ super(Application.class);
+ }
+}
\ No newline at end of file
diff --git a/ScientificCalculator/app/src/main/AndroidManifest.xml b/ScientificCalculator/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..fa21d97
--- /dev/null
+++ b/ScientificCalculator/app/src/main/AndroidManifest.xml
@@ -0,0 +1,21 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/ScientificCalculator/app/src/main/ic_cal_launcher-web.png b/ScientificCalculator/app/src/main/ic_cal_launcher-web.png
new file mode 100644
index 0000000..57544fd
Binary files /dev/null and b/ScientificCalculator/app/src/main/ic_cal_launcher-web.png differ
diff --git a/ScientificCalculator/app/src/main/java/app/poojawins/c4q/nyc/scientificcalculator/ArityParser.java b/ScientificCalculator/app/src/main/java/app/poojawins/c4q/nyc/scientificcalculator/ArityParser.java
new file mode 100644
index 0000000..56938d0
--- /dev/null
+++ b/ScientificCalculator/app/src/main/java/app/poojawins/c4q/nyc/scientificcalculator/ArityParser.java
@@ -0,0 +1,22 @@
+package app.poojawins.c4q.nyc.scientificcalculator;
+
+/**
+ * Created by pooja on 5/21/15.
+ */
+
+import org.javia.arity.Symbols;
+import org.javia.arity.SyntaxException;
+
+public class ArityParser implements Parser{
+
+ public String parse(String expression) {
+ try {
+ Symbols symbols = new Symbols();
+ double result = symbols.eval(expression);
+ return "" + result;
+ } catch (SyntaxException ex) {
+ return "ERROR: " + ex.getMessage();
+ }
+ }
+
+}
diff --git a/ScientificCalculator/app/src/main/java/app/poojawins/c4q/nyc/scientificcalculator/JavaluatorParser.java b/ScientificCalculator/app/src/main/java/app/poojawins/c4q/nyc/scientificcalculator/JavaluatorParser.java
new file mode 100644
index 0000000..0e10497
--- /dev/null
+++ b/ScientificCalculator/app/src/main/java/app/poojawins/c4q/nyc/scientificcalculator/JavaluatorParser.java
@@ -0,0 +1,21 @@
+package app.poojawins.c4q.nyc.scientificcalculator;
+
+/**
+ * Created by pooja on 5/21/15.
+ */
+
+import com.fathzer.soft.javaluator.DoubleEvaluator;
+
+public class JavaluatorParser implements Parser {
+
+ public String parse(String expression){
+ try {
+ DoubleEvaluator evaluator = new DoubleEvaluator();
+ Double result = evaluator.evaluate(expression);
+ return "" + result;
+ } catch (Exception ex) {
+ return "ERROR";
+ }
+ }
+
+}
diff --git a/ScientificCalculator/app/src/main/java/app/poojawins/c4q/nyc/scientificcalculator/MainActivity.java b/ScientificCalculator/app/src/main/java/app/poojawins/c4q/nyc/scientificcalculator/MainActivity.java
new file mode 100644
index 0000000..68c18d8
--- /dev/null
+++ b/ScientificCalculator/app/src/main/java/app/poojawins/c4q/nyc/scientificcalculator/MainActivity.java
@@ -0,0 +1,351 @@
+package app.poojawins.c4q.nyc.scientificcalculator;
+
+import android.support.v7.app.ActionBarActivity;
+import android.os.Bundle;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.widget.TextView;
+import android.widget.Button;
+import java.util.ArrayList;
+import android.view.View;
+
+
+public class MainActivity extends ActionBarActivity {
+ public String lastAnswer = "";
+ public boolean justEvaluated = false;
+
+ TextView displayText;
+
+ Button acButton;
+ Button equalButton;
+
+ Button percentButton;
+ Button factorialButton;
+ Button decimalButton;
+
+ Button plusButton;
+ Button subtractButton;
+ Button multiplyButton;
+ Button divideButton;
+
+ Button number9Button;
+ Button number8Button;
+ Button number7Button;
+ Button number6Button;
+ Button number5Button;
+ Button number4Button;
+ Button number3Button;
+ Button number2Button;
+ Button number1Button;
+ Button number0Button;
+
+ // scientific calculator specific buttons
+ Button backspaceButton;
+ Button radButton;
+ Button degButton;
+ Button squareRootButton;
+ Button xyButton; // (x^y)
+ Button expButton;
+ Button lnButton;
+ Button eButton;
+ Button logButton;
+ Button reciprocalButton;
+ Button piButton;
+ Button sineButton;
+ Button cosineButton;
+ Button tangentButton;
+ Button openParenthesisButton;
+ Button closeParenthesisButton;
+ Button answerButton;
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.activity_main);
+
+ displayText = (TextView) findViewById(R.id.displayText);
+
+ acButton = (Button) findViewById(R.id.acButton);
+ equalButton = (Button) findViewById(R.id.equalButton);
+
+ percentButton = (Button) findViewById(R.id.percentButton);
+ factorialButton = (Button) findViewById(R.id.factorialButton);
+ decimalButton = (Button) findViewById(R.id.decimalButton);
+
+ plusButton = (Button) findViewById(R.id.plusButton);
+ subtractButton = (Button) findViewById(R.id.subtractButton);
+ multiplyButton = (Button) findViewById(R.id.multiplyButton);
+ divideButton = (Button) findViewById(R.id.divideButton);
+
+ number9Button = (Button) findViewById(R.id.number9Button);
+ number8Button = (Button) findViewById(R.id.number8Button);
+ number7Button = (Button) findViewById(R.id.number7Button);
+ number6Button = (Button) findViewById(R.id.number6Button);
+ number5Button = (Button) findViewById(R.id.number5Button);
+ number4Button = (Button) findViewById(R.id.number4Button);
+ number3Button = (Button) findViewById(R.id.number3Button);
+ number2Button = (Button) findViewById(R.id.number2Button);
+ number1Button = (Button) findViewById(R.id.number1Button);
+ number0Button = (Button) findViewById(R.id.number0Button);
+
+ // scientific calculator specific buttons
+ backspaceButton = (Button) findViewById(R.id.backspaceButton);
+ radButton = (Button) findViewById(R.id.radButton);
+ degButton = (Button) findViewById(R.id.degButton);
+ squareRootButton = (Button) findViewById(R.id.squareRootButton);
+ xyButton = (Button) findViewById(R.id.xyButton); // (x^y)
+ expButton = (Button) findViewById(R.id.expButton);
+ lnButton = (Button) findViewById(R.id.lnButton);
+ eButton = (Button) findViewById(R.id.eButton);
+ logButton = (Button) findViewById(R.id.logButton);
+ reciprocalButton = (Button) findViewById(R.id.reciprocalButton);
+ piButton = (Button) findViewById(R.id.piButton);
+ sineButton = (Button) findViewById(R.id.sineButton);
+ cosineButton = (Button) findViewById(R.id.cosineButton);
+ tangentButton = (Button) findViewById(R.id.tangentButton);
+ openParenthesisButton = (Button) findViewById(R.id.openParenthesisButton);
+ closeParenthesisButton = (Button) findViewById(R.id.closeParenthesisButton);
+ answerButton = (Button) findViewById(R.id.answerButton);
+
+ ArrayList