Hp 50g Graphing Calculator Manual do Utilizador descarregar pdf (Página 91)

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and the variable of differentiation. To fill these input locations, use the following

keystrokes:

~„t™~‚a*~„tQ2

™™+~‚b*~„t+~‚d

The resulting screen is the following:

To see the corresponding expression in the line editor, press ‚— and the

A soft menu key, to show:

This indicates that the general expression for a derivative in the line editor or in

the stack is:

∂variable(function of variables)

Press ` to return to the Equation Writer. The resulting screen is not the

derivative we entered, however, but its symbolic value, namely,

To recover the derivative expression use ‚¯. To evaluate the derivative

again, you can use the D soft menu key. This shows again that

Second order derivatives are possible, for example:

which evaluates to:

βαδβα

+⋅=+⋅−⋅ ttt

2)(

1 2 ... 86 87 88 89 90 91 92 93 94 95 96 ... 886 887

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Hp 50g Graphing Calculator Manual do Utilizador Página 91

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