User Guide

Expressions You can specify expressions instead of equations. The solve
command automatically equates them to zero.
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W represents the Lambert W function.
Multiple Equations To solve multiple equations or inequations, specify
them as a set or list.
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Solving for Specific Unknowns By default, the solve command returns
solutions for all unknowns. You can specify the unknowns for which to
solve.
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3.4 Solving Equations • 81