Hello, in real world this is sooo easy:
h = 105,5 mm
w = h *0.36
In groff world 105.5 and 0.36 needs to come in centimeters, then some
correction needs to be applied.
Let's say that h is already done and contains roughly 300,000u.
The 0.36 may come as some 10,000 for 0.36c and some 28,000 for 1c with
which we need to divide 0.36c
We have an A * B / C thing to be executed either as (A * B) / C or
(A / C) * B.
The first one may result in an overflow, the second may lose precision.
How do you handle similar problems? Divide B and C with 10? Or with
100 before turning to, say, (A*B)/C?
One can spend too much time on things like this.
Miklos
