## App Purchase

Enter the last 8 digits of your 27-digit TI-Nspire's Product ID.

Located under 5:Settings → 4:Status → About ID may look like: 1008000007206E210B0BD92F455 HELP. If this was your ID you would only type in BD92F455.

At the end of the PayPal checkout, you will be sent an email containing your app. Read Installation Instructions

Price:\$49.95

## Description

• The most comprehensive Matrix/Vector APP for calculators.
• Users have boosted their Matrix/Vector knowledge.
• Ideal for quick review in all Matrix and Linear Algebra classes.
• Easy to use. Just plug in the matrix/vector and the correct answer shows.
• Enter Matrices A and B easily
• Perform 30+ Matrix Computations such as A+B, A-B, k*A, A*B, B*A, A-1, det(A), Eigenvalues, LU and QR - Factorization, Norm, Trace.
• Step by Step - Simplex Algorithm.
• Step by Step - Gaussian Elimination.
• Step by Step - Find Inverse
• Step by Step - Find Determinant
• Step by Step - Row Echelon and Reversal (REF and RREF)
• Step by Step - Gauss and Gauss Jordan Elimination
• Step by Step - Cramer Rule
• Step by Step - EigenValues and EigenVectors.
• Step by Step - Square Root Matrix
• Solve any n by n system of equations.
• Rotation Matrices, Magic Squares and much more.
• Step by Step - Solve AX=B
• Step by Step - OrthoNormal Basis
• Cross and Dot Product, UnitVector, Angle between Vectors
• Projection A onto B, Distance A to B, etc ...
• Vector Differentiation and Integration
• Test Orthogonality, Find Orthogonal Vector, Test Independence
• and much more..

## FUNCTIONALITY & MENU ITEMS OF APP :

### MATRIX1

• All in One Matrix Analyzer
• A + B
• A * B
• k*A
• Symmetry(A)
• Minor

### MATRIX2

• Row Echolon
• Reverse Row Echolon
• Gauss Elimination
• Find EigenValues
• Find EigenVectors
• Find Orthonormal Basis
• Gram Schmidt Procedure
• Find Inverse via RREF
• Find Inverse via Formula
• Find Determinant via Diagonal
• Find Determinant via formula
• Find Trace

### APPLICATIONS

• LU Decomposition & solve A*X=B
• Solve A*X=B
• Solve A*X=B with 1 Parameter
• Cramer Rule to solve A*X=B
• Simpson Algorithm
• Coding: En/Decode Messages
• Rotate a point via Matrices
• Diagonalization
• LU Factorization
• QR Factorization
• v(A) - Square Root

• Help & Use of Keys
• What to Input
• Set FontSize

### VECTORS

• All in one Vector Explorer
• Find Norm
• All in one 2-Vectors Explorer
• Test of Orthogonality
• Find Angle between 2 Vectors
• Test of In/Dependence
• Projection of A to B
• Distance A to B
• Find Cross Product
• Find Orthogonal 3D Vector
• Differentiation & Integration