Casio fx-180P Manual De Operación página 7

l) x!
(13) lg, Close parenthesis/ Factorial] Regression analysis estimator key
0 Closes the parentheses.
O Obtains the factorial of the displayed number when pressed after the key.
0 Obtains an estimator of regression in regression analysis ("LR" mode). 9 will be
obtained if you press it immediately after data entry and '2 if you press it following
after data entry.
(14) Constant memory entry/Register exchange key
0 31:96 numbers into each constant memory, through operation of ENTRY Ell] (to
Q .
Example: To enter 12.3 into constant memory 3.
1 2 El 3E] [31
O Exchanges the displayed number (X-register) with the content of the working register
(Y-register) when pressed after the [E] key.
(15) '3' Constant memory recall/ Register exchange key
0 Recalls the contents in each constant memory without clearing, through operation of
@(to Ca ).
Example: To recall the contents of constant memory 5.
[3]
O Exchanges the displayed number lX-register) with the contents of a constant memory
(K-register) when pressed after the key.
Example: To exchange the contents of constant memory 2 with the displayed
number.
@EJEJ
MID-
(16) - Independent memory recall/Independent memory entry key
0 Recalls the contents of the independent memory (M~register) without clearing.
o Puts the displayed number in the independent memory when pressed after the @key.
Old data held in the memory will be automatically erased.
(17) w." Memory plus (minus) key
a Adds the displayed number to the contents of the independent memory, and obtains
answer in 4 basic calculations/xy/x'i' and automatically adds it to the contents of the
memory.
0 Subtracts the displayed number from the contents of the independent memory, and
obtains answer in 4 basic calculations/xy/x'i' and automatically subtracts it from the
contents of the memory when pressed after the key.
(18) Sign change/Square key
0 Changes the sign of the displayed number from plus to minus and vice versa.
0 Obtains the square of the displayed number when pressed after the key.
(19) I Sexagesimal/Decimal conversion key
0 Converts the sexagesimal figure to decimal notation.
O Converts the decimal notation to sexagesimal notation when pressed after the key.
(20) "a Sine/Arc sine key
0 Obtains the sine of the displayed angle.
0 Obtains the angle when pressed after the (El key.
(21) 3 Cosine/Arc cosine key
0 Obtains the cosine of the displayed angle.
0 Obtains the angle when pressed after the E key.
-6-