Equa diff Help

[Han]

(01-02-2014 09:04 PM)jc_63 Wrote:  I've found : the ' is in Chars (Shift Vars) and y' is correctly coded as diff().
With Shift 9, the ' is not the same but minute (angle unit).
It is a source of error !
JC

An easier way to get ' is to use [Shift][ () ] and delete the extra tic mark.