semath info
History
Recent updates
May 1 2023
Added
"Add one row to another"
Apr. 30 2023
Added
"Case if a column is sum"
Apr. 9 2023
Added
2x2 matrix diagonalization
Past updates
:
Feb. 5 2023
Added
"Case if a row is sum "
Jan. 28 2023
Added
"Case if a scalar is multiplied "
Jan. 28 2023
Added
"Case if a column is scalar-multiplied "
Jan. 2 2023
Added
"Case if a row is scalar-multiplied "
Dec. 13 2022
Added
"Case two rows are equal"
Dec. 3 2022
Added
"Case two columns are equal"
Nov. 12 2022
Added
"Swap rows and columns"
Sep. 4 2022
Added
"Determinant of orthogonal matrix"
Sep. 4 2022
Added
"Definition of identity matrix"
Sep. 3 2022
Added
"Inverse of orthogonal matrix"
Jul. 10 2022
Added
"An example of orthogonal matrix"
Aug. 13 2022
Added
"Product of orthogonal matrix"
Jul. 10 2022
Added
"Definition of orthogonal matrix"
May. 29 2022
Added
"Trace defined by three properties"
May. 14 2022
Added
Linearity of transpose
Apr. 22 2022
Added
Linearity of trace
Apr. 3 2022
Added
Cyclic property of trace
Mar. 27 2022
Added
Symmetry of trace
Mar. 5 2022
Added
Examples of trace
Mar. 5 2022
Added
Trace of a transposed matrix
Jan. 29 2022
Added
Determinant of the trace
Jan. 2 2022
Added
Determinant of a transposed matrix
Nov. 13 2021
Added
Inverse of a transposed matrix
Oct. 3 2021
Added
Transpose of product of two matrices
Oct. 3 2021
Added
Examples of transposed matrix
Sep. 5 2021
Added
Transpose matrix
Sep. 1 2019
Added
Lagrange interpolation
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
Jan. 2 2019
Added
How to calculate the rank of a matrix
Jan. 1 2019
Added
How to diagonalize a 3x3 matrix
Dec.r 30 2018
Added search engine
Oct. 28 2018
Added
Kronecker's delta
Dec. 24 2017
Added
Definition of Determinant
Nov. 3 2017
Added
Triangle Inequality
Oct. 22 2017
Added
Variance of Exponential Distribution
Oct. 14 2017
Added
Expectation value of Exponential Distribution
Oct. 7 2017
Added
"a matrix is invertible" $\Longleftrightarrow$ "its determinant is non-zero"
Sep. 30 2017
Added
Definition of linearly independence/dependence and examples
Sep. 24 2017
Added
Computing the square root of 3
Sep. 16 2017
Added
inverse matrix of a 4x4 matrix using Gauss-Jordan elimination
Sep. 6 2017
Added
inverse matrix of a 3x3 matrix using Gauss-Jordan elimination
Sep. 2 2017
Added
Variance of Geometric Distribution
Aug. 19 2017
Added
Expectation value of Geometric Distribution
Aug. 11 2017
Added
Euler angle
Aug. 11 2017
Added
Calculator of system of linear equations
Jul. 30 2017
Added
Gaussian integral
Jul. 8 2017
Added
Rodrigues' rotation formula
Jun. 25 2017
Added
determinant 2x2
Jun. 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