Leica GPS1200 Series Technical Reference Manual page 643

Description of softkeys
Tools...\Calculator
First level
to access the Second level
+ (F1)
To add <X:> and <Y:>.
- (F2)
To subtract <X:> from <Y:>.
* (F3)
To multiply <X:> by <Y:>.
/ (F4)
To divide <Y:> by <X:>.
+/- (F5)
To change between positive and negative
algebraic sign for <X:>.
CLR X (F6)
To clear <X:>.
Σ+ (F1)
To add <X:> to <ΣX:> and <Y:> to <ΣY:>.
Σ- (F2)
To subtract <X:> from <ΣX:> and <Y:> from
<ΣY:>.
MEAN (F3)
To calculate the mean <ΣX>.
SDEV (F4)
To calculate the standard deviation for <ΣX>.
CLRΣ (F6)
To clear <ΣX> and <ΣZ>.
GPS1200 643