Error when changing from cm to inches

[ppal]

My calculations fall over when I change to inches. Prime 8 Used.

Then won't work when I chage back to cm

[ttokoro · Accepted solution]

Add this to eliminate errors after W:=5 in.

[Werner_E]

Seems to be a new bug introduced in P7 or P8.
I don't experience this erroneous behaviour in P6.

Maybe it helps if you activate "Units/Constants in Symbolics" in the Calculation Options.