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(Note) : When using those keys, make sure the calculator is set
for the angle unit you want.
2–11
Hyperbolic / Inverse-Hyp. Functions
SRP-280 / SRP-285 uses [ 2nd ] [ HYP ] to calculate the hyperbolic
functions and inverse- hyperbolic functions – sinh, cosh, tanh, sinh
–1
cosh
and tanh
(Note) : When using those keys, make sure the calculator is set
for the angle unit you want.
2–12
Coordinates Transformation
Pressing [ 2nd ] [ R
coordinates to polar coordinates or vice versa. See Example 33.
Rectangular Coordinates
(Note) : When using those key, make sure the calculator is set
for the angle unit you want.
2–13
Probability
Pressing [ PRB ] displays the probability menu. See Example 34.
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.
Generates a random number between 0 and 1.
RAND
2–14
Other Functions ( X
The calculator also provides reciprocal ( [ x
( [ √ ] ), universal root ( [
exponentiation ( [ ^ ] ) functions. See Example 35.
–1
. See Example 32.
P ] displays a menu to convert rectangular
x + y i = r (cos θ + i sin θ )
< SRP-280 >
< SRP-285 >
E – 14
Polar Coordinates
–1
, √ ,
, X
X
–1
] ), square ( [ x
X
–1
2
, ^ )
] ), square root
2
] ) and
,
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