Casio CFX-9970G, Руководство пользователя

Страница: 379 / 474

359
ALGBR Mode Commands
20 - 3
Syntax: sumSeq ({<value>, <value>, ...} [,<variable>] [)]
• A default variable of X is used when specification of a variable is skipped.
Example To obtain an expression that expresses the sum up to the
n
th
term when terms 1 through 4 are the following sequence of
values: {23, 30, 37, 45}
6
(
g
)
4
(PTS
'
)
2
(smSq)
! { cd,da,dh
,ef ! } , a N w
• If List 1 = {23, 30, 37, 45}, the same result can be obtained by inputting the
following: sumSeq(List 1, N).
u u u u u
Complex Exponential-to-Trigonometric Transformation ——
(expTo)
This command transforms an exponential function whose exponent includes an
imaginary number to a trigonometric function.
Syntax: expToTrig (<expression>[)]
Example To transform the following function to a trigonometric function:
eiX
6
(
g
)
5
(CPLX)
1
(expTo)
!e ( 3
(i)
v ) w
cos(X) + i • sin(X)
u u
u u u
Complex Trigonometric-to-Exponential Transformation —— (trgTo)
This command transforms a trigonometric function whose argument is an
imaginary number to an exponential function.
Syntax: trigToExp (<expression>[)]
Example To transform the following function to an exponential function:
cos iX
6 (
g
) 5 (CPLX) 2 (trgTo)
c
(
3 (i) v
)
w
N4 N3 95N2 77N
–
+ +
24 4 24 4
1
eX +
X
e
2