trianfml

Scilab Function
Last update : 25/04/2007

trianfml - symbolic triangularization

### Calling Sequence

  `[f [,sexp]]=trianfml(f [,sexp])`

### Description

Symbolic triangularization of the matrix `f` ; triangularization is performed by elementary row operations; `sexp` is a set of common expressions stored by the algorithm.

### Examples

    A=['1','2';'a','b']
    W=trianfml([A,string(eye(2,2))])
    U=W(:,3:4)
    a=5;b=6;
    A=evstr(A)
    U=evstr(U)
    U*A
    evstr(W(:,1:2))

### See Also

`addf` , `mulf` , `solve` , `trisolve` ,