Casio fx-180P Manual De Operación página 4

(1) Power switch
Move the switch to the right to activate the calculator and "ON" is displayed. Even
when power is off, the contents held in independent memory and constant memory
registers, and the programs are not lost.
(2) Display
Modes Units of angle
/ \ / \
on mv M K LRN f4: LR so DEG RAD GnA
l JJUE'IWL'UJ'" -'35'
1.1. .r 1.11.: 114.11.: mm,
\ / \ /
Mantissa Exponent
The display shows input data, intermediate results and results of operation. The
mantissa section displays up to 10 digits (9 for negative numbers). The exponent
section displays up to :99.
The fraction and angle in the sexagesimal scale are displayed as follows:
456% is displayed ...... 456412.123.
12°34'56.7" is displayed. , . . 12°34°56.7
"E" (error check, see page 10) may be displayed in the position of the mantissa's least
significant digit. "DEG", "RAD" or "GRA" (angular unit). "INV" (when the key
has been pressed), "M" (when data is stored in independent memory). "K" (during
calculation with constants), "SD" (during calculation of standard deviation), "LFl"
(during calculation of regression analysis), and/or "fdx" (during execution of
integral). as well as "LRN" and "ENT" will be displayed to indicate the operating
mode.
Auto power-off
If the calculator is left with the power switch at the "ON" position (except while
programmed calculation), the auto power~off function automatically turns off the
power in approximately 6 minutes, thereby saving battery life. Power is resumed either
by pressing the Elkey or by re-operating the ON-OFF switch.
(Even when power is off, the contents of memories and written programs as well as the
angular unit and operating mode are not lost.)
(3) & Inverse key (symbolized by )
Activates the functions printed in brown on the keyboard.
When the 8 key is pressed, "INV" appears on the display and the subsequent pressing
of makes " lNV" disappear.
(4) 3 Mode key (symbolized by )
To put the calculator into the desired operating mode or select a specific angular unit,
press first, thenE], ED, ...... . , or.
: Manual and programmed calculations can be executed.
"LRN" is displayed. Programs can be written.
" Idx" is displayed. Integral can be carried out.
"LR" is displayed. Calculation of regression analysis can be executed.
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