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Apps and their views 29

– For a Sequence

definition, either

enter the first term,

or the first and

second terms for U.

Then define the nth

term of the

sequence in terms of N or the prior terms, U(N–1)

and/or U(N–2). The expressions should produce

real-valued sequences with integer domains. Or

define the Nth term as a non-recursive expression

in terms of N only.

– Note: you will have to enter the second term if the

HP 39gII is unable to calculate it automatically.

Typically if Ux(N) depends on Ux(N–2) then you

must enter Ux(2).

Evaluating expressions

In apps In the Symbolic view, a variable is a symbol only, and

does not represent one specific value. To evaluate a

function in Symbolic view, press . If a function calls

another function, then resolves all references to

other functions in terms of their independent variable.

1. Choose the Function

app.

Select Function

2. Enter the expressions in the Function app’s Symbolic

view.

AAs

AF1lm+

F2 lm

HP 39gII User Manual

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