Elmo HARSFEN0602, HARmonica software manual Simple Expressions, Assignment Expressions

HARSFEN0602ElmoHARmonicaSoftwareManual			PRELIMINARYDRAFT
	sin	Sine	Floating point
	cos	Cosine	Floating point
	abs	Absolute value	Same type as input argument
	sqrt	Square root, or zero if argument is	Floating point
		negative
	fix	Truncate to integer.	Integer
		fix(3.8) is 3
		fix(-3.8) is -3
	rnd	Truncate to nearest integer.	Integer
		rnd(3.8) is 4
		rnd(-3.8) is –4
	tdif	Time difference	Floating point
		x=TM
		tdif(x ) returns the time in msec since
		x=TM has been sampled.

4.2.6Expressions

An expression is a combination of operands (parameters) and operators that is evaluated in a single value. Expressions work with immediate numbers, Amplifier commands, Amplifier and global user-program variables.

There are different types of expressions, as described below.

4.2.6.1Simple Expressions

A simple expression is evaluated in a single value. Any parameter and mathematical/logical operator may be used to create a simple expression. Normally, simple expressions may be used as a part of other types of expressions.

Simple expressions are evaluated according to the priority of the operators, as specified in Table 4-1 – Mathematical and Logical Operators. In case of equal priority, the expression is evaluated from left to right.

The use of parentheses is allowed to 16 nesting levels.

Example:

AC=100000

SP*2/5+AC SP= SP*2/5+AC IP5 (SP+SP)*IA[1+AC*0] IA[1]5&2

2+3

1400000

4.2.6.2Assignment Expressions

Assignment expressions are used to assign a value to variable or command. The syntax of an assignment expression is:

<Parameter or command name>=<simple expression>

Example:

25