matrix math is fun
Matrices. A Matrix is an array of numbers: 2x3 Matrix A Matrix (This one has 2 Rows and 3 Columns). We talk about one matrix, or several matrices. There are many things we can do with them . ,We call the number ("2" in this case) a scalar, so this is called "scalar multiplication". Multiplying a Matrix by Another Matrix. But to multiply a matrix by another matrix we need to do the "dot product" of rows and columns,The Inverse of a Matrix is the same idea but we write it A-1. Reciprocal of A is A-inverse and back again. Why not 1/A ? Because we don't divide by a Matrix! And anyway 1/8 can also be written 8-1. And there are other similarities: When we multiply a ,Determinant of a Matrix. The determinant of a matrix is a special number that can be calculated from a square matrix. A Matrix is an array of numbers: A Matrix (This one has 2 Rows and 2 Columns). The determinant of that matrix is (calculations are explai,Step 1: Matrix of Minors. The first step is to create a "Matrix of Minors". This step has the most calculations. For each element of the matrix: ignore the values on the current row and column; calculate the determinant of the remaining values. ,And watch out for these special words: displacement vs distance. Distance vs Displacement. Distance is a scalar ("3 km"); Displacement is a vector ("3 km Southeast"). You can walk a long distance, but your displacement may be small (or,Data Entry. Enter your matrix in the cells below "A" or "B". Or you can type in the big output area and press "to A" or "to B" (the calculator will try its best to interpret your data). ,x + y + z = 6; 2y + 5z = −4; 2x + 5y − z = 27. We then went on to solve it using "elimination" ... but we can solve it using Matrices! Using Matrices makes life easier because we can use a computer program (such as the Matrix Calculator) to do a,Inverse of a Matrix using Elementary Row Operations. Also called the Gauss-Jordan method. This is a fun way to find the Inverse of a Matrix: Play around with the rows (adding, multiplying or swapping) until we make Matrix A into the Identity Matrix I. mat,Your life will be a lot easier when you can simply remember the multiplication tables. So ... train your memory! First, use the table above to start putting the answers into your memory. Then use the Math Trainer - Multiplication to train your memory, it
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 matrix math is fun 相關參考資料
Matrices - Math is Fun
Matrices. A Matrix is an array of numbers: 2x3 Matrix A Matrix (This one has 2 Rows and 3 Columns). We talk about one matrix, or several matrices. There are many things we can do with them . https://www.mathsisfun.com How to Multiply Matrices - Math is Fun
We call the number ("2" in this case) a scalar, so this is called "scalar multiplication". Multiplying a Matrix by Another Matrix. But to multiply a matrix by another matrix we nee... https://www.mathsisfun.com Inverse of a Matrix - Math is Fun
The Inverse of a Matrix is the same idea but we write it A-1. Reciprocal of A is A-inverse and back again. Why not 1/A ? Because we don't divide by a Matrix! And anyway 1/8 can also be written 8-1... https://www.mathsisfun.com Determinant of a Matrix - Math is Fun
Determinant of a Matrix. The determinant of a matrix is a special number that can be calculated from a square matrix. A Matrix is an array of numbers: A Matrix (This one has 2 Rows and 2 Columns). The... https://www.mathsisfun.com Inverse of a Matrix using Minors, Cofactors and Adjugate - Math is Fun
Step 1: Matrix of Minors. The first step is to create a "Matrix of Minors". This step has the most calculations. For each element of the matrix: ignore the values on the current row and colu... https://www.mathsisfun.com Scalar, Vector, Matrix - Math is Fun
And watch out for these special words: displacement vs distance. Distance vs Displacement. Distance is a scalar ("3 km"); Displacement is a vector ("3 km Southeast"). You can walk ... https://www.mathsisfun.com Matrix Calculator - Math is Fun
Data Entry. Enter your matrix in the cells below "A" or "B". Or you can type in the big output area and press "to A" or "to B" (the calculator will try its best... https://www.mathsisfun.com Solving Systems of Linear Equations Using Matrices - Math is Fun
x + y + z = 6; 2y + 5z = −4; 2x + 5y − z = 27. We then went on to solve it using "elimination" ... but we can solve it using Matrices! Using Matrices makes life easier because we can use a c... https://www.mathsisfun.com Inverse of a Matrix using Elementary Row Operations ... - Math is Fun
Inverse of a Matrix using Elementary Row Operations. Also called the Gauss-Jordan method. This is a fun way to find the Inverse of a Matrix: Play around with the rows (adding, multiplying or swapping)... https://www.mathsisfun.com Multiplication - Times Tables - Math is Fun
Your life will be a lot easier when you can simply remember the multiplication tables. So ... train your memory! First, use the table above to start putting the answers into your memory. Then use the ... https://www.mathsisfun.com |