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Entering and Evaluating Equations 6-5
Numbers in Equations
You can enter any valid number in an equation, including base 2, 8 and 16, real,
complex, and fractional numbers. Numbers are always shown using ALL display
format, which displays up to 12 characters.
To enter a number in an equation, you can use the standard number–entry keys,
including
, , and . Do not use for subtraction.
Functions in Equations
You can enter many HP 35s functions in an equation. A complete list is given under
“Equation Functions” later in this chapter. Appendix G, "Operation Index," also
gives this information.
When you enter an equation, you enter functions in about the same way you put
them in ordinary algebraic equations:
In an equation, certain functions are normally shown between their
arguments, such as "+" and "÷". For such infix operators, enter them in an
equation in the same order.
Other functions normally have one or more arguments after the function
name, such as "COS" and "LN". For such prefix functions, enter them in an
equation where the function occurs — the key you press puts a left
parenthesis after the function name so you can enter its arguments.
If the function has two or more arguments, press
to separate them.