Numeric expressions

Numeric expressions are formed using numeric elements and arithmetic operators. The evaluation of the expression returns a single numeric value.

Numeric expression in EASI are normally operated on in double precision floating point. Values with less precision are promoted to double precision before operations are performed.

A numeric element can be any of the following:

a numeric constant, such as 3.14
a subscripted numeric parameter, such as VECTOR[2]
a numeric intrinsic function, such as COS(0.5)
a numeric user defined function, such as Average(4,6) from the earlier example.
an EASI numeric variable, of type byte, integer, float, or double.
a subscripted EASI numeric array variable.

Arithmetic operators specify the computation to be performed. The order of the operations is determined by operator precedence:

Precedence	Operator	Operation
1	( ) and [ ]	Parenthesis, also square brackets []
1	^	Exponentiation
1	-	Unary negation
2	*	Muliplication
	/	Division
3	+	Addition
	-	Subtraction