March 2017
Intermediate to advanced
480 pages
11h 3m
English
Content preview from Game Physics Cookbook
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Determinant of a 3x3 matrix
We can find the determinant of any matrix through Laplace Expansion. We will be using this method to find the determinant of 3 X 3 and higher order matrices. We also used this method to find the determinant of 2 X 2 matrices; we just expanded the method by hand for that function to avoid looping:
To follow the formula, we loop through the first row of the matrix and multiply each element with the respective element of the cofactor matrix. Then, we sum up the result of each multiplication. The resulting sum is the determinant of the matrix.
Using the first row is an arbitrary choice. You can do this equation on any row of ...
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