HP 39g+ Graphing Calculator Guia do Utilizador descarregar pdf (Página 147)

Using mathematical functions 11-3

Keyboard functions

The most frequently used functions are available directly

from the keyboard. Many of the keyboard functions also

accept complex numbers as arguments.

,,, Add, Subtract, Multiply, Divide. Also accepts complex

numbers, lists and matrices.

value1+ value2, etc.

Natural exponential. Also accepts complex numbers.

e^value

Example

e^5 returns 148.413159103

Natural logarithm. Also accepts complex numbers.

LN(value)

Example

LN(1) returns 0

For a description, see

“COMB(5,2) returns 10. That is,

there are ten different ways that

five things can be combined two

at a time.!” on page 11-12.

∑

For a description, see “Σ” on

page 11-10.

EEX

For a description, see “Scientific

notation (powers of 10)” on

page 1-20.

For a description, see “ ” on

page 11-7.

The multiplicative inverse

function finds the inverse of a

square matrix, and the

multiplicative inverse of a real or

complex number. Also works on

a list containing only these object

types.

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HP 39g+ Graphing Calculator Guia do Utilizador Página 147