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An equation can contain the following items:
 | Input parameters. These are represented by X for a measured parameter and A, B C D E for a calculated parameter. |
| Numbers. These should be in fixed point decimal notation, such as 12.34. Exponential notation, such as 1.234E1, is not supported. |
| Mathematical operators. See below. |
| Mathematical functions. See below |
| Spaces. |
| Operators. The operators follow the normal rules of operator precedence (BODMAS, for "Brackets, Of, Division, Multiplication, Addition, Subtraction"). If you wish to force a particular order of evaluation, use brackets. |
Notation
|
Description
|
Usage
|
( )
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brackets
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(x - 5) * 6
|
-
|
unary minus
|
-x
|
-
|
binary minus
|
x - 5
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+
|
plus
|
x + 5
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*
|
times
|
x * 5
|
/
|
divide
|
x / 5
|
| Functions |
Name
|
Description
|
Usage
|
Example
|
exp
|
e^x
|
exp (x)
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exp (3) = 20.085
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log10
|
log10
|
log10 (x)
|
log10(100) = 2
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ln
|
loge
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ln (x)
|
ln(20.085) = 3
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power
|
power
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x power 5
|
2 power 3 = 8
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mod
|
modulo (remainder)
|
x mod 5
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10 mod 2 = 1
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sqrt
|
square root
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sqrt (x)
|
sqrt(2) = 1.414
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