Stanford Research Systems SR850 User Manual page 148

Math Menu
Calc
Do Calc:
Operation
+
Argument Type
Trace
Constant
Constant Value
0
Cursor Value
to Arg:
Return:
Do Calc
Operation
The Calculation sub menu allows the user perform simple arithmetic cal-
culations with data displayed in the active chart. Operations are per-
formed only on the data within the chart, not the entire trace buffer.
An operation which overflows (such as divide by zero) will display an
error message and abort.
Performing a calculation on the data will change the data. Once
changed, the data can not be restored to its original values. To avoid
accidentally losing original data, save the trace data to a disk file
before performing Calc menu operations.
MATH
Calc
Do Calc
Operation
Return
Pressing this key starts the actual calculation. While calculations are in
progress, the "Calculating..." message is displayed at the bottom of the
screen. The calculation uses the operation specified by the Operation
menu box below and uses the argument chosen by the Argument keys.
Note that many operations will require an AutoScale to display the result
on the graph.
The Operation key highlights the operator as the active field for knob
selection. Turn the knob to select +, -, x, /, sin, cos, tan, , x
x
10 . The add, subtract, multiply, and divide functions require a second
argument (entered below) which may be a constant or another trace.
5-38
Argument Type
Constant
Constant Value
Cursor to Arg
Trace
Trace Number
2
, log 10,