The sqrt(x) function takes the square root of the unit-free portion of x and multiplies it by the unit raised to the power 1/2.

The root(x,n) and root[n](x) functions take the nth root of the unit-free portion of x and multiply it by the unit raised to the power 1/n.

The surd(x,n) function takes the nth root of the unit-free portion of x, whose (complex) argument is closest to the unit-free portion of x, and multiplies it by the unit raised to the power 1/n.

For other properties, see the global functions sqrt, root, and surd.

To enter a unit in 2-D Math input, select the unit from the appropriate Units palette. If the unit you want is not there, select $\mathrm{unit}$ and then enter the unit.

When you edit a unit, double brackets appear around it.

$\mathrm{with}\left(\mathrm{Units}\left[\mathrm{Standard}\right]\right)\:$

$\mathrm{sqrt}\left(3.532\mathrm{Unit}\left({'m'}^2\right)\right)$

$1.879361594⟦m⟧$

$\mathrm{root}\left(3.532\mathrm{Unit}\left({'m'}^3\right)\,3\right)$

$1.522907638⟦m⟧$

$\mathrm{root}\left[3\right]\left(-3.532\mathrm{Unit}\left({'m'}^3\right)\right)$

$\left(0.7614538193+1.318876702\mathrm{I}\right)⟦m⟧$

$\mathrm{surd}\left(-3.532\mathrm{Unit}\left({'m'}^3\right)\,3\right)$

$-1.522907638⟦m⟧$

$\mathrm{surd}\left(16.532\mathrm{Unit}\left({'m'}^4\right)\,4\right)$

$2.016421638⟦m⟧$