Maths Channel

Overview

Maths channels can be used to calculate values from one or more inputs using arithmetic and functions.

The equation entered for a maths channel is referred to as a ‘script’.

Script Entry

Type in the Maths Function area to enter in your script.

Below the script entry area, any errors in the script will be shown.

Above the script area are buttons for inserting channels, functions, operators and constants.

Whilst it is generally quicker to type scripts in by hand, the buttons offer a reminder of what’s available.

Input Variables

Input variables may be specified in maths scripts in the form $N where N is a number, e.g. $1 or $5. Up to 64 input variables may be specified.

If input variables are used then the inputs may be selected underneath the script entry area.

For example, to multiply two input variables together, you could write:

$1 * $2

Inline Channels

As an alternative to Input variables, channels can be specified directly in maths scripts using the channel name in single quotation marks.

e.g.

'Analog 01'

When typing a single quote character in the script editor, a list of channels will be shown for auto-completion.

Comments

Comments can be inserted in scripts and start with a # character. They continue to the end of the line. Scripts may span over multiple lines.

# This is a comment

Operators

1 + 2 * 3 # Multiplication takes precedence over addition so 2 is multiplied by 3 before adding 1.