Question about Sharp EL-531VB Calculator
I wish to get the "factorial" of 20! What button do I press
Look above number 4 there should be 'n!' in yellow color that is the factorial so just type 20 then shift 4, shift is the yellow button in the top left. Hope you find it.
Posted on Jul 07, 2009
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Posted on Jan 02, 2017
Tips for a great answer:
Jul 15, 2016 | Bush Televison & Video
*Tip: The iO button will light on for 20 seconds. The
next step must be entered while the iO button is
STEP2 Press the [INFO] button.
The iO button will blink number of times indicating the
number of each digit of the code number. Each digit is
separated by a 1 second interval of the iO button being
Example :One blink, three blinks and eight blinks with
an interval of 1 second of iO button being
turned off, indicates the code number 138.
Note :Ten blinks is equal to the number 0.
D. Program the Volume Controls.
By following the steps below, the user can program
the volume controls (Volume UP, Volume Down and
MUTE) . The default volume control settings on the
remote control is TV volume control. If you wish you
can control the volume via your CABLE box, use the
STEP1 Press the [CBL] button and the [SEL] button
simultaneously for 3 seconds. The iO button
will turn on.
*Tip : The iO button will light on for 20 seconds.
The next step must be entered while the
iO button is on.
STEP2 Press the [VOL +] button.
STEP3 Press the [CBL] button.
The iO button will blink twice to confirm the
To return to original state:
If you wish you can control the volume via your TV,
repeat the above steps by pressing [TV] in STEP3 .
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