Linear Algebra Helper

About Linear Algebra Helper Android App

Welcome to your own personal Linear Algebra Helper! Perform matrix calculations with ease!

----- Features -----
- Select matrix dimensions up to 10x10
- Calculations available include add, subtract, multiply, transpose, inverse, multiply by scalar constant, null space, column space, row space, determinant, and eigenvalues
- Easy to use interface to quickly input your matrix elements
- Empty cells will count as 0
- Displays the reduced row echelon form with exact fractions
- Once the reduced row echelon form is displayed, you can go back and edit the matrix
- Clear your current matrix, clear all zero values, or insert the identity matrix
- Permanently store up to five different matrices
- Edit previously saved matrices
- Does not require an internet connection to use once the app is downloaded

----- How to use the app -----

Creating a new matrix:

1) Select your matrix dimensions and click the Create button
2) Once you have a new matrix, you can input your matrix (Empty cells will count as 0) and press Reduce to bring your matrix into row reduced echelon form
3) To save your matrix, click one of the five save buttons at the bottom

Editing a saved matrix:

1) Select one of the four saved matrix (Default matrix is a 3x3 zero matrix)
2) Edit the elements (There are options to clear all entries, clear all zero entries, or insert the identity matrix)
3) Save as the same matrix or another matrix

Performing matrix calculations:

1) Choose the first matrix to be on the left side of the operation
2) Choose the operation to be used
3) Choose the second matrix to be on the right side of the operation (if applicable)

----- Developers -----
Jeffrey Chan
Josiah Bailey
Dana Borowski
Richard Zhang