matrix.lubksb
Syntax
- x := matrix.lubksb(v,i,b)
Solves the system A*x = b via back-substitution of a system previously decomposed via
matrix.ludcmp
. The matrix v is assumed to be a matrix previously returned frommatrix.ludcmp
. The list i is assumed to be an index list previously calculated in the same call tomatrix.ludcmp
. The column matrix b is the right-hand side of the system to the solved.Returns: x - The solution to the system of equations, expressed as a column matrix.
Arguments: v - array, matrix, or tensor pointer corresponding to a square matrix.
i - the index list or array given to
matrix.ludcmp
b - the right hand side, as a column matrix, to solve for.
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