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SOLUTIONS
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| BUILT-IN MATHEMATICA SYMBOL | Tutorials »|See Also »|More About » |
LinearSolve finds an x which solves the matrix equation  . |
| LinearSolve[m] generates a LinearSolveFunction[...] which can be applied repeatedly to different b. |
is equivalent to LinearSolve[m][b]. 
to determine whether matrix elements are zero. The default setting is ZeroTest->Automatic.
With no right-hand side, a LinearSolveFunction is returned:
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to 
with exact arithmetic:
for 
when 
is a matrix:
:
is a large sparse matrix:
using a direct multifrontal method:
using an iterative Krylov subspace method:
to 
modulo 47:
:
is a 3×3 matrix:
is nonsingular, the solution 
of 
is the inverse of 
when 
is the identity matrix:
: 
:
:
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