Casio fx-180P Manual De Operación página 5

0 [3] : "SD" is displayed. Calculation of standard deviation can be executed.
' To carry out manual or programmed calculation, select the RUN mode (press and
o E : "le6" is displayed, indicating that "degrees" is selected as the unit of
an e.
o : "RgAD" is displayed, indicating that "radians" is selected as the unit of
n e.
0 : EGQRA" is displayed. indicating that "gradient" is selected as the unit of
an e.
(Note: 90 degregs = n/Z radians = 100 gradients)
o : "Fix" assignment (assignment for the number of fractional digits).
Specify the number of digits of the fractional part after pressing and
. (Example: El [235.] (three fractional digits are effective))
0 : "Scientific" assignment (assignment for the number of significant digits).
Specify the number of significant digits after pressing and .
(Example: EU)
0 [_§_] ; "Normal" assignment. Press in this sequence to release the "fix" or
"scientific" assignment.
" To clear programs, press this key, following the @key. (@Eldenotes this "program
clear" sequence.)
' Once power is off, the "fix" and "scientific" assignments will be released but the
operating mode ("LRN", " Idx", "LR" or "80") and the angular unit ("056",
"RAD" or "G RA") will be kept.
(5) @l - @l E] Numeral and decimal point keys
Enters numerals. For decimal places, use the Elkey in its logical sequence.
'Varying functions will be designated when you press and a numeral key, as
summarized below.
0 Q : Cutting off internal data
to the displayed data.
0 '57-.) : Random number generation
A random number between 0.000 and 0.999 will be generated.
"Use following sequences in calculation of standard deviation and in regression
analysis. For more details, refer to the chapter 6 "STATISTICAL CALCU-
LATIONS".
O EFF . Calculation 011? (average of x)
o : Calculation of x0n(population standard deviation of x)
0 E92, : Calculation of Jran (sample standard deviation of x)
0 EC? : Caiculation of? (average of y)
g Q : Calculation of you (population standard deviation ofy)
0 SE? : Calculation of y 0,1-1 (sample standard deviation of y)
0 El? : Calculation of A (constant terms in regression equations)
0 c?) : Calculation of B (regression coefficients) -
0 Sq) : Calculation of r (correlation coefficients)