Sutter Instrument IPA Operation Manual page 83

These constants have 27 digit precision.
Parsing
Equation parsing is executed from left to right, processing the highest prece-
dence operators first:
Precedence
5
4
3
2
1
0
0
Syntax
All equations use the same syntax as Igor, with a few additions:
Three kinds of brackets '[ ], { }, ( )' can be used equivalently to improve the
•
clarity of nested expressions.
Numeric values can use engineering units, e.g. '5p' is equivalent to '5e-12'.
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Equations follow a parsing sequence, where parsing is stopped at the end of
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a string, or at a semi-colon (";"), whichever comes first. Thus, comments can
be added after a semi-colon.
Equation Pool Syntax
Insert an equation from the equation pool into an Equation field by entering "#" followed by
the label of the equation, e.g. "#label(5)". This will use the result of the equation from the
equation pool with label "Label", passing the argument "5" to that equation.
Example: using a LED light source.
To stimulate in increments of light intensity, one has to use an equation to
transform the light intensity values in the routine to the actual stimulus values,
with amplitudes in volts. One might build an equation in the equation pool as
follows:
label = "power_to_volts"
INTEGRATED PATCH AMPLIFIER OPERATION - M
Type
Unitary operations
Power
Remainder
Addition/subtraction
Bit operations
Comparison operations
All other operations
ANUAL
Operator
*, /, %
& (and), | (or), nor, xor
>, >=, <, <=, =, ==, !=
round, trunc, ceil, floor, exp, sqrt,
ln, log, sin, cos, tan, asin, acos,
atan, abs, rad, deq, noise, random
– R . 1.0.6 (20160729)
EV
83
-, !
^
+, -