MathsMate Plus Solvers provides general mathematical information sheets plus a range of equations solvers/calculations in the maths fields of Geometry, Statics,Series,Proportional Lengths,Interest,Areas and Volumes. Also operations between square matrices can be performed (multiply,Addition,Subtraction, Transpose) as well as Linear Equations solving using the Jacobi Interation method.General settings can be made for the program and  for the Jacobi Interation method. The App is easy to use with a tab/swipe layout design. The About/Help tab offers a simple web browser. For the linear solvers using the Jacobi method requires setting the initial variable estimates and the number of interations. On display of the results a Error value is also displayed next to the variable value. The error is the difference between the displayed and previous variable value. Generally the smaller the error value the more accurate is the result. Matrices can be saved, emailed, downloaded to file and reopened. Also Unit conversions and sci-calculator.

// Option A //

To download ChemEng Software Design mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download ChemEng Software Design 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 ChemEng Software Design 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 ChemEng Software Design in HappyMod App.