Hi there

I'm an old user of Maple, but I've never been able to plot functions with unit. You can see my latest attempt down below

b := 120*Unit('mm');
h := 200*Unit('mm');
V := 8*Unit('kN');

I__x := (1/12)*b*h^3

Q(x):=(1/2)*((1/4)*h^2-(100*Unit('mm')-x)^2)*b 
tau(x):=V*Q(x)/(I__x*b)

plot(Q(x(Unit('mm')), units), x = 0*Unit('mm') .. 100*Unit('mm'))

Plot_function_with_units.mw

If anyone is able to help me with this problem, I would greatly appreciate it.