History  

 
Recent updates
May 12 2019   Added Example of the geometrc distribution
May 4 2019   Added Gaussian integral
May 2 2019   Added Cofactor expansion
May 1 2019   Added Cofactor matrix
January 2 2019   Added How to calculate the rank of a matrix
January 1 2019   Added How to diagonalize a 3x3 matrix

 

Past updates:
December 30 2018   Added search engine
October 28 2018   Added Kronecker's delta
December 24 2017   Added Definition of Determinant
November 3 2017   Added Triangle Inequality
October 22 2017   Added Variance of Exponential Distribution
October 14 2017   Added Expectation value of Exponential Distribution
October 7 2017   Added "a matrix is invertible" $\Longleftrightarrow$ "its determinant is non-zero"
September 30 2017   Added Definition of linearly independence/dependence and examples
September 24 2017   Added Computing the square root of 3
September 16 2017   Added inverse matrix of a 4x4 matrix using Gauss-Jordan elimination
September 6 2017   Added inverse matrix of a 3x3 matrix using Gauss-Jordan elimination
September 2 2017   Added Variance of Geometric Distribution
August 19 2017   Added Expectation value of Geometric Distribution
August 11 2017   Added Euler angle
August 11 2017   Added Calculator of system of linear equations
July 30 2017   Added Gaussian integral
July 8 2017   Added Rodrigues' rotation formula
June 25 2017   Added determinant 2x2
June 12 2017   Added cofactor matrix 4x4
June 3 2017   Added cofactor matrix 3x3
May 27 2017   Added cofactor matrix 2x2
May 13 2017   Added determinant 3x3
May 20 2017   Added inverse matrix 4x4
May 6 2017   Added inverse matrix 3x3
May 4 2017   Added cofactor expansion 4x4
May 4 2017   Added cofactor expansion 3x3
May 4 2017   Added 4x4 determinant
May 3 2017   Added an error page
May 3 2017   Added determinant 5x5
May 3 2017   Released