HP 48gII Graphing Calculator Manual do Utilizador descarregar pdf (Página 437)

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Function lim

The calculator provides function lim to calculate limits of functions. This

function uses as input an expression representing a function and the value

where the limit is to be calculated. Function lim is available through the

command catalog (‚N~„l) or through option 2. LIMITS &

SERIES… of the CALC menu (see above).

Note: The functions available in the LIMITS & SERIES menu are shown next:

Function DIVPC is used to divide two polynomials producing a series

expansion. Functions DIVPC, SERIES, TAYLOR0, and TAYLOR are used in

series expansions of functions and discussed in more detail in this Chapter.

Function lim is entered in ALG mode as lim(f(x),x=a) to calculate the

limit

)(lim xf

ax→

. In RPN mode, enter the function first, then the expression

‘x=a’, and finally function lim. Examples in ALG mode are shown next,

including some limits to infinity. The keystrokes for the first example are as

follows (using Algebraic mode, and system flag 117 set to CHOOSE boxes):

„Ö2 @@OK@@ 2 @@OK@@ x+1‚í x‚Å 1`

The infinity symbol is associated with the 0 key, i.e.., „è.

1 2 ... 432 433 434 435 436 437 438 439 440 441 442 ... 863 864

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