Conditional Expressions - HP -18C Owner's Manual

Conditional Expressions
Formulas can include conditional expressions using the function IF.
For example, the solver accepts the formula:
BONUS=
IF (SALES > 3000: . 02xSALES: .01 x SALES)
The two colons inside the parentheses stand for NTHEN" and NOR
ELSE." According to this formula, if SALES are greater than 3000,
then the BONUS equals .02 x SALES; otherwise, BONUS equals .01
x SALES.
In general, the syntax of the IF function is:
IF(conditional expression : algebraic expression : algebraic expression)
The logical and relational operators that can be used in conditional
expressions are described in table 9-4.
Table 9-4. Operators Used in Conditional Expressions.
Logical Operators Relational Operators
AND
>
(.[I])
Greater than .
OR <
(.[TI )
Less than.
EXOR
=
Equal to.
NOT
>=
Greater than or equal to.
< =
Less than or equal to.
<>
Not equal to.
148 9: The Formula Solver