Complex number calculations – Casio fx115ms User Manual
Page 9
E-7
CMPLX
A
P
0.9
J
900.
9
Ϭ1 m
Complex Number
Calculations
Use the
F
key to enter the CMPLX Mode when you
want to perform calculations that include complex
numbers.
CMPLX ...........................................................
F
2
• The current angle unit setting (Deg, Rad, Gra) affects
CMPLX Mode calculations. You can store an expres-
sion in CALC memory while in the CMPLX Mode.
• Note that you can use variables A, B, C, and M only in
the CMPLX Mode. Variables D, E, F, X, and Y are used
by the calculator, which frequently changes their values.
You should not use these variables in your expressions.
• The indicator “R
↔I” in the upper right corner of a
calculation result display indicates a complex number
result. Press
A
r
to toggle the display between the
real part and imaginary part of the result.
• You can use the replay function in the CMPLX Mode.
Since complex numbers are stored in replay memory in
the CMPLX Mode, however, more memory than normal
is used up.
• Example: (2
ѿ3
i
)
ѿ(4ѿ5
i
)
҃ 6ѿ8
i
(Real part 6)
2
+
3
i
+
4
+
5
i
=
(Imaginary part 8
i
)
A
r