Linear Algebra FREE

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# Description

The most powerful mathematical app!

Free “Step by step” for all functions.

OFFLINE: app does not require access to the internet.

Free “Step by step” for all functions.

OFFLINE: app does not require access to the internet.

ALL AVAILABLE FUNCTIONS:

---Matrix algebra---

[+] matrix addition

[+] inverse

[+] matrix multiplication

[+] multiplication by number

[+] matrix transposition

[+] find determinant (Gauss)

[+] definition of the rank

[+] find determinant (Minors)

[+] System Of Linear Equation (A)x=(B) (Gauss)

[+] System Of Linear Equation (A)x=(B) (Kramer)

[+] matrix equation (A)(X)=(B)

[+] matrix equation (X)(A)=(B)

[+] LU decomposition

[+] inverse matrix (Minors)

[+] matrix power

[+] eigenvalues

---Vector algebra---

[+] dot product

[+] length of vector

[+] cross product

[+] angle between vectors

[+] build vector by points

FEATURES:

[-] theory

[-] new functions (vector algebra)

[-] export to Maple, MathLab, Wolfram

[-] clipboard for cells

Download assistant for solving problems in areas such as: linear algebra, analysis, economics, differential equations and computer graphics.

My review

Review from

# Reviews

4.3

870 total

5 577

4 150

3 66

2 18

1 59

Enrique Ceballos

Awesome Great overall. I am a math professor and I recommend this app to my students once we get into large matrices or into situations where we have to put a matrix to a large power. The only suggestion I would give to the developer is to eliminate what's in a cell when one chooses it. It takes time to have to clear the cell instead of just typing the number in

Mark Oman

I like it but gives incorrect answers. Great interface and range of tools but I've gotten incorrect answers from the cross product tool which makes me wary of the whole thing. My error case was {2,4,-3}x{7,0,7}={28,35,-28} when the real answer (verified by hand and on Wolfram Alpha) is {28,-35,-28}. Fix the logic and this will be awesome.

Jeshan Dangol

Gettin incorrect answers I tried to solve three problems and got wrong answers each time. Is it just me? In te eigen value function.

Andrew Keith

Best matrix app With free step by step solutions this app is very useful for solving and learning matrix and vector operations. Cool new interface too.

User reviews

ComfyMobile February 8, 2014

Thank you for your review, Brittney! The app has indeed wide functionality, but I got wrong answer when executing cross product,namely : (1, 2, 3)x(4 ,5, 6)=(-3, -6 ,-3).Please take care.

The algorithm does not provide the correct cross-product, what a disappointing flaw.

Very useful I used this app a lot while studying linear algebra and after. It proved really helpful whenever I needed to test my answers.

Finally I found a creator that reply to our feedback. I will recommend it to all of my classmates. Keep it up.

decent its not a great matrix app if theres no option for reducing a matrix into its echelon form

Bakán My útil para verificar las respuestas cuando estás estudiando.

Algrebra This looks and sounds excellent, how long will this last in order to learn the concepts and rules?

ComfyMobile December 11, 2013

Dear Sebastian! If you want to fast closing, you have HOME button on your device. Shows steps I accidentally reduced my B matrix too far, and it erased a row in A, mostly: having to clear wrong data from each segment before entering correct #'s is a pain. Besides not preserving the column data and this extra step it's a gem for checking work.

ComfyMobile October 6, 2013

This feature is made to prevent data loss in case of accidental resizing. We plan to add quick removal, thank you for your review Can't even get a determinant right Kept telling me the determinant of a matrix was 4 when more reliable software and my own calculations confirmed it was 1. Piece of junk.

ComfyMobile October 22, 2013

Thanks for your review. Can you sending me your matrix? comfymobile@gmail.com Great calculator for use in class Input is faster than a TI84

Review deleted

# What's New

- New interface with new design

- Vector algebra

- Clipboard for matrices

- Speed up Math kernel

- More bugs fixed

- Support most devices with Android 2.3 - 4.4

# Additional information

Updated

November 4, 2013

Installs

50,000 - 100,000

Current Version

2.0

Requires Android

2.3.3 and up

Permissions

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ComfyMobile

Developer