Some examples :
Chr(65) gives "A"
Chr(97) gives "a"
Chr(62) gives ">"
Chr(37) gives "%"
You can find all characters in VBA help, on excel, for example.
If you want to round a number with one decimal place, you have to do like it : ASSIGN\V1=ROUND(10*(YOUR_NUMBER))/10.
If you want to assign an angle of PH10 from a measured angle, you can Assign V1=Round(Measured_angle/7.5)*7.5, it will give you automatically a multiple of 7.5.