Linear Algebra and the C Language/a0g4


Identity matrix:

The identity matrix of size n is the n x n square matrix with ones on the main diagonal and zeros elsewhere.... W: Identity matrix


Elementary rows operations with the identity matrix:

  • c00a.c ... Swap two rows
  • c00b.c ... Zero under the pivot "C1"
  • c00c.c ... Zero under the pivot "C2"
  • c00d.c ... The pivot at one
  • c00e.c ... Put zero above the pivot


Elementary columns operations with the identity matrix:

  • c00a.c ... Swap two columns
  • c00b.c ... Zero on the right of the pivot"
  • c00c.c ... The pivot at one:"
  • c00d.c ... Put zero on the left of the pivot
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