Solve Function

The solve() function is used to numerically find the real roots of an expression in a given variable. It can take either two or four arguments:

solve('expression','variable')
solve('expression','variable','lower','upper')

When given two arguments, the roots will be searched in the range set by Tools > Options... > Roots (range). This is important — if the root is outside that range, it will not be found.

The precision of root finding depends on the Tools > Options... > Decimal places setting. Increase the number of decimal places for greater precision.

Note: solve() needs an expression, and can sometimes fail. For instance, because SMath calculates integrals numerically, an equation containing an integral cannot always be solved using solve().

For a broader overview of solving equations in SMath Studio, including roots() and polyroots(), see Solving Equations.

This page is based on a legacy wiki article by Radovan Omorjan.