HP 39g+ - Manual (Page 42)

2-2 Aplets and their views
– For a Function
definition, enter
an expression to
define F(X). The
only independent
variable in the
expression is X.
– For a
Parametric
definition, enter
a pair of
expressions to
define X(T) and
Y(T). The only
independent variable in the expressions is T.
– For a Polar
definition, enter
an expression to
define R(
θ). The
only independent
variable in the
expression is
θ.
– For a Sequence
definition, either:
Enter the first and
second terms for U
(U1, or...U9, or
U0). Define the nth
term of the
sequence in terms of N or of the prior terms,
U(N–1) and 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. In this
case, the calculator inserts the first two terms
based on the expression that you define.