Hp 48g Graphing Calculator Manuel d'utilisateur Page 134

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Expressing Functions: Algebraic Syntax
The difference between functions and other commands is that
functions can be included in algebraic expressions. The syntax used
by a function determines how it interprets its inputs (or
argum,ents).
Functions can be classified into three types based on their syntax:
a Prefix functions. Functions such as ‘SINO-O ' and '
whose name (or operator) comes before its argument(s) (which are
listed in parentheses and separated by commas).
Infix functions. Functions such as + and that come between their
two arguments.
¡■ | Postfix functions. Functions such as ! (factorial) that come after
their argument.
Note In the expression ' fl<B*C> ', H is treated as a prefix
function and not as a multiplicative argument. The
HP 48 interprets the expression as “apply function
H to the product of B and C,” instead of “multiply
fl by the product of B and C.” If multiplication is
intended, be sure to include the multiplication
operator, * (or = in the Equation Writer).
11-2 Using Mathematical Functions
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