File: trisolve.man

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.TH trisolve 1 "April 1993" "Scilab Group" "Scilab Function"
.so ../sci.an
.SH NAME
trisolve - symbolic linear system solver
.SH CALLING SEQUENCE
.nf
[x [,sexp]] = trisolve(A,b [,sexp])
.fi
.SH PARAMETERS
.TP 10
A,b
: matrices of strings
.SH DESCRIPTION
symbolically solves \fVA*x =b\fR , \fVA\fR being assumed to be
upper triangular.  
.LP
\fVsexp\fR is a vector of common subexpressions in \fVA, b, x\fR.
.SH EXAMPLE
.nf
A=['x','y';'0','z'];b=['0';'1'];
w=trisolve(A,b)
x=5;y=2;z=4;
evstr(w)
inv(evstr(A))*evstr(b)
.fi
.SH SEE ALSO
trianfml, solve
.SH AUTHOR
F.D, S.S