ChampCalc © is a powerful scientific calculator that supports large numbers and high precision. The calculator also fully supports complex numbers in rectangular and polar form (equation and display).Edit your equation comfortably and efficiently by multiline equations editor with equation syntax highlighting, and change the equation cursor position by touch or cursor keys.Using the calculator is simple and convenient, thanks to the friendly user interfaces. And not less important, advanced and professional look that can be customized.Features:
• Multiline equation editor with blinking cursor
• Equation with a custom syntax highlighting
• Quick equation history navigation buttons
• Complex number equations support
• Rectangular and Polar form fully supports
• Math, Trig, Logarithmic, Statistics and more...
• Hyperbolic trig functions with complex support
• Equations with variables support (PRO)
• Supports large numbers and high precision
• Degrees, radians and grads mode
• Customize number format
• Configurable numbers precision
• Fixed, scientific and engineering mode
• High-quality themes and equation color sets
• Syntax color sets and custom text size
• Advanced calculator settings screen
• Extended user guide includes samplesUser Interfaces:
• Memory dialog box:
  Organize and store your values and results
• Equations dialog box:
  Organize and store your Equations (PRO)
• Variables dialog box:
  Assign, set and use variables (PRO)
• Assign variables from memory dialog box
• Assign variables from constants dialog box
• Large scientific constants table
• Result dialog box for extended options
• Share menu and clipboard optionsPRO Version Features:
★ Advanced color editor for equation syntax
★ Configurable equation text size
★ Variables dialog box
★ Equations dialog box
★ Complex argument support on trig functions
★ Keep supporting this project ☺

// Option A //

To download Champ Scientific Calculator mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Champ Scientific Calculator mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download Champ Scientific Calculator from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Champ Scientific Calculator in HappyMod App.