Citizen SRP-285II - Trigonometric; Inverse-Tri. Functions; Hyperbolic; Inverse-Hyp. Functions; Coordinates Transformation; Probability

E – 14
File name : CBM_SR19S1_HDB119S1RR9_English
version : 2007/07/04
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Trigonometric / Inverse-Tri. Functions
SRP-285II provides standard trigonometric functions and inverse
trigonometric functions - sin, cos, tan, sin
–1
, cos
–1
and tan
–1
. See
Example 35~37.
(Note) : When using those keys, make sure the calculator is set
for the angle unit you want.
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Hyperbolic / Inverse-Hyp. Functions
SRP-285II uses [ 2nd ] [ HYP ] to calculate the hyperbolic functions
and inverse- hyperbolic functions – sinh, cosh, tanh, sinh
–1
, cosh
–1
and tanh
–1
. See Example 38~39.
(Note) : When using those keys, make sure the calculator is set
for the angle unit you want.
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Coordinates Transformation
Pressing [ 2nd ] [ R P ] displays a menu to convert rectangular
coordinates to polar coordinates or vice versa. See Example
40~41.
Rectangular Coordinates Polar Coordinates
x + y i = r (cos
θ
+ i sin
θ
)
(Note) : When using those key, make sure the calculator is set
for the angle unit you want.
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Probability
z
Pressing [ PRB ] displays the probability menu. See Example
42~46. With the following functions :
nPr
Calculates the number of possible permutations of n item
taken r at a time.
nCr
Calculates the number of possible combinations of n
items taken r at a time.
!
Calculates the factorial of a specified positive integer n ,
where n
≦
69.
RANDM
Generates a random number between 0 and 1.
RANDMI
Generates a random integer value between two specified
integers, A and B, where A
≦
random value
≦
B