Test Functions - HP 39g+ User Manual

QUOTE
where
| ( )

Test functions

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11-18
Encloses an expression that should not be evaluated
numerically.
QUOTE(expression)
Examples
QUOTE(SIN(45))
expression SIN(45) rather than the value of SIN(45).
Another method is to enclose the expression in single
quotes.
For example, X^3+2*X
expression X^3+2*X into F1(X) in the Function
aplet.
Evaluates expression where each given variable is set to
the given value. Defines numeric evaluation of a symbolic
expression.
expression|(variable1=value1, variable2=value2,...)
Example
3*(X+1)|(X=3) returns 12.
The test functions are logical operators that always return
either a 1 (true) or a 0 (false).
Less than. Returns 1 if true, 0 if false.
value1<value2
Less than or equal to. Returns 1 if true, 0 if false.
value1≤value2
Equals (logical test). Returns 1 if true, 0 if false.
value1==value2
Not equal to. Returns 1 if true, 0 if false.
value1≠value2
Greater than. Returns 1 if true, 0 if false.
value1>value2
F1(X) stores the
F1(X) puts the
Using mathematical functions