Expansion And Factoring Using Log-Exp Functions; Expansion And Factoring Using Trigonometric Functions - HP 49g+ User Manual

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hyperbolic functions in terms of trigonometric identities or in terms of
exponential functions. The menus containing functions to replace
trigonometric functions can be obtained directly from the keyboard by
pressing the right-shift key followed by the 8 key, i.e., ‚Ñ. The
combination of this key with the left-shift key, i.e., ‚ Ð, produces a
menu that lets you replace expressions in terms of exponential or natural
logarithm functions. In the next sections we cover those menus in more detail.

Expansion and factoring using log-exp functions

The „Ð produces the following menu:
Information and examples on these commands are available in the help
facility of the calculator. Some of the command listed in the EXP&LN menu,
i.e., LIN, LNCOLLECT, and TEXPAND are also contained in the ALG menu
presented earlier. Functions LNP1 and EXPM were introduced in menu
HYPERBOLIC, under the MTH menu (See Chapter 2). The only remaining
function is EXPLN. Its description is shown in the left-hand side, the example
from the help facility is shown to the right:

Expansion and factoring using trigonometric functions

The TRIG menu, triggered by using ‚Ñ, shows the following functions:
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