Ctjitiiaismbffthabiknbfanbiaaaa, Algebraic method, 1 © 62.5 (enter) u 'j – HP 48G User Manual
Page 32: Cdiar)a4(©s) '4, Algebraic method -4
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Example:
Calculate
15(ENTER)
.06 (ENTER) 14.5 ¡3 ©
1:
17.2413793103
CTjitiiaiSmBfftHaBiKnBfanBiaaaa
Algebraic method
The HP 48 i.s as proficient with algebraic arithmetic as it. is with
stack arithmetic. Unlike the direct, immediat.e approach of stack
arithmetic, the HP 48 also allows you to enter a computation as an
algebraic formula so that you can inspect it or store it for later use.
This
method
also
has two
steps: first create
and enter the formula,
then evaluate it to compute the result.
You must surround an algebraic formula with
t i c k - m a r k s
(' C so that the HP 48 understands that you
want to treat the mathematical operations as a formula
instead
of
as
a
series
of direct
commands. The
“tick”
key
(CD)
is highlighted in the diagram to the left.
Example:
Calculate ©g using the algebraic method.
S t e p 1 :
Enter the algebraic expression.
(© 1 © 62.5 (ENTER)
U
________ _____ ____ 'j--62.5'
S t e p 2 :
Evaluate the expression
to
obtain
a
numerical result.
(
eval
)
1: .016
Example:
Calculate 20
fCUEARl r©
20
(
3
© (^
2
(EV^
Example:
Calculate 4f;“'^.
C D i A R ) a 4 ( © s ) ' 4 ®
f ^ 5 f E V ^
1 :
350.174049835
3-4 Arithmetic