To convert 1D to 2D math:

1. Enter an expression in 1D math notation. (Press F5 to switch between 1D and 2D math entry.)


2. From the Context Panel, select Convert To>2D Math Input. The expression is now displayed in 2D math input notation.


3. Press Enter to evaluate the expression.

Important: Mixed 1D math and 2D math is not supported and not recommended stylistically. You cannot mix 1D and 2D math inside one command. For example, the following is not supported.
>

$f\u2254\mathbf{proc}\left(x\right)$x^2$\mathbf{end}\mathbf{proc}semi;$

Warning, inserted missing semicolon at end of statement
${{x}}^{{2}}$
You can, however, have a well formed 2D expression and a well formed 1D expression in the same execution group. For example,
>

$f\u2254\mathbf{proc}\left(x\right)x\mathbf{end}\mathbf{proc}semi;$x^2;

${f}{:=}{\mathbf{proc}}\left({x}\right)\phantom{\rule[0.0ex]{0.3em}{0.0ex}}{x}\phantom{\rule[0.0ex]{0.0em}{0.0ex}}{\mathbf{end\; proc}}$
${{x}}^{{2}}$