Question about Casio Scientific Calculator Fx-82es Plus
Some people do not care much about the packaging and throw it. From what I know about these calculators, in North America they ship in a clam shell (plastic wrap) and not a box. I do not believe it proves anything. Unless you have a written document with a serial number. But these calculators do not have a serial number. Go buy yourself a calculator and take better care of it.
Posted on Feb 13, 2014
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Posted on Jan 02, 2017
1.Set the correct angle unit required by your problem: degrees, radians, or grads. [SHIFT][MODE] [3:deg] or [4:Rad]
2. Press the key for the function COS, SIN, or TAN
[COS] displays Cos(
3.Enter the angle 12 deg Screen shows cos(12
Close the right parenthesis ) Screen shows cos(12)
4.Press [=] Screen displays 0.9781
If you want the inverse trigonometric functions you access them with arccos [SHIFT] [COS] (cos^-1)
arcsin [SHIFT][SIN] (sin^-1)
actan [SHIFT][TAN] (tan^-1)
You have to know the principal domain for the inverse trigonometric functions (see any book on trigonometry) to understand the results.
Hope it helps.
Posted on Nov 05, 2009
SOURCE: How to use antilog by
The inverse of the log function is the function 10^
antilogarithm of (x)=10^(x)
The function shares the same physical key as the [LOG] function. To access it you press [SHIFT][LOG].
The antilogarithm of the natural log [LN] is the exponential function [e^x]. It shares the same physical key with the [LN] function. To access it press [SHIFT][LN]
Posted on Sep 07, 2010
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