Using Calc; Other Functions ( √ , Abs, Rnd, Ppcm, Pgcd, Ent, Entex ); Multi-Statement Function; Statistical Calculations - Citizen SR-270X College Instruction Manual

Using CALC

CALC function lets you temporarily store a mathematical expression
that contain variables, which you can then recall and execute in the
COMP Mode. The following describes the types of expressions you
can save with CALC. See Example 38.
1) Expressions: 2X + 3Y, 2AX + 3BY + C
2) Multi-statements: X + Y : X (X + Y)
3) Equalities with a single variable on the left and an expression
including variables on the right: A = B + C, Y = X2 + X + 3
(Use [ ALPHA ] [ = ] to input the equals sign of the equality.)
Other functions ( √ ,
RND, PPCM, PGCD, ENT, ENTEX )
The calculator also provides reciprocal ( [ x
cubic root ( [ 2nd ] [
2
( [ x ] ), cubic ( [ x
Example 39~47.
Generates the absolute value of a real number
Abs
RND Generates the rounding value of a given number
Calculates the smaller mutual multiple of two positive
PPCM
integers.
PGCD Calculates the bigger mutual divisor of two positive
integers.
ENT Input a value to extract the integer part.
ENTEX Input a value to obtain the largest integer that is not greater
than the value.

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 48.

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
Paired-variable / Regression statistics
2: A+BX
File name : SR100DCollege_English_text_0531_final.doc
version : 10/05/31
3
] ), universal root ( [ 2nd ] [
3
3
] ), and exponentiation ( [ x
Single-variable statistics
Linear Regression
E – 15
-1 2 3
, , x , x , x , x
X
-1
] ), square root ( [ √ ] ),
] ), square
X
y
] ) functions. See
Y = A + BX
y
, Abs,