E – 14
File name : HDB0R100721_English_text_100426.doc
version : 10/04/26
[ nCr ]
Calculates the number of possible combinations of n
items taken r at a time.
[ x ! ]
Calculates the factorial of a specified integer n , where n
≦
69.
[
RANDM
] Generates a random real number between 0.000 and
0.999.
Other functions (
√
,
3
,
X
, x
-1
,
x
2
, x
3
, x
y
, Abs,
RND )
The calculator also provides reciprocal ( [ x
-1
]
), square root ( [
√
] ),
cubic root ( [ 2nd ] [
3
] ), universal root ( [ 2nd ] [
X
] ), square
( [ x
2
] ), cubic ( [ x
3
] ), and exponentiation ( [ x
y
] ) functions. See
Example 35~39.
Abs
Generates the absolute value of a real number
RND
Generates the rounding value of a given number
Multi-statement Function
A Multi-statement is a number of individual statements grouped
together by display result commands (
：
) for sequential execution.
When execution reaches the end of a statement followed by (
：
),
execution stops and an intermediate result with a " Disp " icon
appears on the display. You can resume execution by pressing [ = ].
" Disp " icon disappears when the last statement is being executed.
See Example 40.
Statistical Calculations
Use STAT ( [ MODE ] 2 ( STAT ) ) mode for statistical calculations.
When you enter STAT mode, you are taken to the STAT menu with
a choice of eight calculation types as follows:
Single–variable statistics
1: 1–VAR
Single-variable statistics
Paired-variable / Regression statistics
2: A+BX
Linear Regression
Y = A + BX
3: _+CX
2
Quadratic Regression
Y = A + BX + CX
2
4: ln X
Logarithmic Regression
Y = A + B lnX
5:
e
^X
e
Exponential Regression
Y = A • e
BX
6: A•B^X
ab Exponential Regression
Y = A • B
X
7: A•X^B
Power Regression
Y = A • X
B
8: 1/X
Inverse Regression
Y = A + B / X
Summary of Contents for SR-270X
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