### 10.7 Numerical Solutions

Not all equations can be solved symbolically. The commands in this
section use numerical algorithms that can find a solution to a specific
instance of an equation to any desired accuracy. Note that the
numerical commands are slower than their algebraic cousins; it is a
good idea to try `a S` before resorting to these commands.

(See Curve Fitting, for some other, more specialized, operations
on numerical data.)