An identity matrix is a matrix that, when performing matrix multiplication, will return the unmodified matrix (or vector) it was multiplied with. It is sort of like the number 1 with regular multiplication:
-
1 * X = X
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An identity matrix is a matrix that, when performing matrix multiplication, will return the unmodified matrix (or vector) it was multiplied with. It is sort of like the number 1 with regular multiplication:
1 * X = X
| <<< Matrix by vector multiplication step-by-step | Index | 3D transformations >>> |