convert/polar converts an expression to its representation in polar coordinates.

The expression is represented as polar(r, theta) where r is the modulus and theta is the argument of the complex value of the expression.

This function can also be invoked directly as polar(expr).  See polar.

$\mathrm{convert}\left(3+4\mathrm{I}\,\mathrm{polar}\right)$

$\mathrm{polar}\left(5\,\arctan \left(\frac{4}{3}\right)\right)$

$\mathrm{convert}\left(3\mathrm{I}\,\mathrm{polar}\right)$

$\mathrm{polar}\left(3\,\frac{\mathrm{\pi }}{2}\right)$

$\mathrm{convert}\left(a+b\mathrm{I}\,\mathrm{polar}\right)$

$\mathrm{polar}\left(\left|a+\mathrm{I}b\right|\,\arg \left(a+\mathrm{I}b\right)\right)$

$\mathrm{map}\left(\mathrm{evalc}\,\right)$

$\mathrm{polar}\left(\sqrt{a^2+b^2}\,\arctan \left(b\,a\right)\right)$