Test Functions - HP 39G User Manual

QUOTE
| ( where )

Test functions

10-20
Encloses an expression that should not be evaluated
numerically.
QUOTE(expression)
Examples
QUOTE(SIN(45))
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
Greater than or equal to. Returns 1 if true, 0 if false.
value1 value2
F1(X) stores the expression
F1(X) puts the
Using mathematical functions