Hp 48g Graphing Calculator Instrukcja Użytkownika Pobierz pdf (Strona 135)

100

101

Algebraic objects use algebraic syntax and thus use the normal rules

of algebraic precedence to determine the order in which the functions

are executed. Functions with higher precedence are performed hrst,

and functions with the same precedence are performed from left to

right. The HP 48’s functions have the following algebraic precedence,

from highest (1) to lowest (11):

1. Expressions within parentheses. Expressions within nested

parentheses are evaluated from inner to outer.

2. Prehx functions (such as SIN, INV, or LOG).

3. Postfix functions (such as !).

4. Power (■ ■ '■ ■ ).

5. Negation (-), multiplication (*), and division (.•■ ■ ').

6. Addition (+) and subtraction (-).

7. Comparison operators (---, <, >, ii, or i±).

8. Logical operators AND aird NOT.

9. Logical operators OR and XOR.

10. The left argument for i (where).

11. Equals (=).

Example:

Cubes A, then adds B to that quantity, since

higher precedence than +.

has a

Raises A to the power 3+B, since an expression

within parentheses has a higher precedence than

Expressing Functions: Stack Syntax

Although there are very few postfix algebraic functions, all functions

on the HP 48 can be executed in postfix form using the stack. Stack

syntax is postfix syntax, where the arguments are entered first,

followed by the command or function name. Postfix syntax is often

a more efficient means of using a series of functions than is standard

algebriac syntax.

Thus the HP 48 allows you to use functions in two distinct ways:

algebraic syntax within algebraic objects or in postfix syntax executed

directly on the stack. For example, the sine function can be used

either as 'SIH<K>' or ‘8E SIN and addition can be either ’ !4+Y ' or

Using Mathematical Functions 11-3

1 2 ... 130 131 132 133 134 135 136 137 138 139 140 ... 611 612

Komentarze do niniejszej Instrukcji

Brak uwag

Hp 48g Graphing Calculator Instrukcja Użytkownika Strona 135

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla PDA Hp 48g Graphing Calculator