Solver EXPLAIN simplification of an expression
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==section input Simplify *[input 70 e=(2-3)-(8+9)*x]. If you type an equation, it will try to solve your equation. There is a much nicer webpage, with the same exact simplifier but more bells and whistles, <A HREF=/services/rendering/simplifier.mpl>click here to get to GUMESS -- universal simplifier and solver</A>. This solver exists more for convenience of tutors, who can use it to plug into their solutions when they solve problems submitted by students. That page does the same thing as this one. ==section solution perl $z = explain_simplification( $e ); ==section output z ==section check e=1 z=1
