Units
Type the unit after the number, the way you would say it. Calculeaf treats
that as multiplication by the unit, so 12 kN/m is twelve
kilonewtons per metre — not a dimensionless 12 with a label stuck on.
Attach a unit
A space after the number is the usual form. No space also works
(5kN). Compound units use /, *, and
^:
w := 12 kN/m =
p := 20 N/mm^2 =
A := 150 mm^2 =
You can also write a unit after a closing parenthesis:
(w * L / 2) kN is unnecessary if w and
L already carry units — the product already has a dimension.
Pick a unit from the ribbon
On the Math tab, the Units group has quick buttons: m, kg, s, N, Pa, J, W, kN, MPa, deg. Units ▾ opens categories: Length, Mass, Time, Force, Pressure, Energy, Power, Temp, Velocity, Area, Volume, Angle, Electric, and Freq. Click a token to insert it into the focused math region.
Incompatible units
If two quantities cannot combine — adding metres to seconds, or passing a
length into ln() — the region shows an error such as
Incompatible units or
ln() requires a dimensionless argument. Fix the expression;
Calculeaf will not silently drop the unit.
Pin a display unit
Click the unit on the result chip and pick a compatible unit. That pins how this region displays; it does not change the stored value. Right-click the region and choose Reset units to clear the pin.
To lock a unit in the expression itself, use
to().