The convert(expr, float) function converts an expression to floating-point to the precision given by the global variable Digits.

If called with an argument n, the expression is evaluated at a value of n digits.

The convert/float command is a call to evalf.

The commands convert/float and convert/sfloat are identical except that convert/float returns any hardware floating-point numbers it encounters unchanged, while convert/sfloat converts them to software floating-point.

$\mathrm{convert}\left(\frac{1}{2}\,\mathrm{float}\right)$

$0.5000000000$

$\mathrm{convert}\left(\mathrm{\pi }\,\mathrm{float}\right)$

$3.141592654$

$\mathrm{convert}\left(\mathrm{\pi }\,\mathrm{float}\,3\right)$

$3.14$

$\mathrm{convert}\left(\sin \left(1\right)\,\mathrm{float}\right)$

$0.8414709848$

The convert/float and convert/sfloat commands were updated in Maple 2015.