Man Scilab

lusolve
Scilab Function

lusolve - sparse linear system solver

Calling Sequence

lusolve(hand,b)
lusolve(A,b)

Parameters

Description

x=lusolve(hand,b) solves the sparse linear system A*x = b .

[hand,rk]=lufact(A) is the output of lufact.

x=lusolve(A,b) solves the sparse linear system \fVA*x = b\fR.

Examples


non_zeros=[1,2,3,4];rows_cols=[1,1;2,2;3,3;4,4];
sp=sparse(rows_cols,non_zeros);
[h,rk]=lufact(sp);x=lusolve(h,[1;1;1;1]);ludel(h)
rk,sp*x

non_zeros=[1,2,3,4];rows_cols=[1,1;2,2;3,3;4,4];
sp=sparse(rows_cols,non_zeros);
x=lusolve(sp,-ones(4,1));
sp*x
 
  

See Also

sparse ,   lufact ,   slash ,   backslash ,  

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