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Old June 12th, 2012, 01:10 PM   #1 (permalink)
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Wink XFunction [APP]

Draw the graph of a function in a simple, fast and reliable way.
XFunction is an Android smartphone application designed to facilitate the study of one-variable functions.
XFunction allows you to display graph of a function, move on it, zoom in or out areas of interest, see the value of the function at the point touched.
But the strength of Xfunction is in the way and speed with which you can do all that.
Thanks to a simple and intuitive interface, XFunction guides you when inserting the function ensuring the correctness of that as you type. Syntactic errors due to bad typing, typically present in applications of this kind will belong only to the past.

If X variable is not specified XFunction becomes a practical scientific calculator.

So from now thanks to XFunction draw the graph of a function becomes an easy game.

Managed functions below:

sum, difference, multiplication (implicit), division
square root, cube root, exponential
natural logarithm, decimal logarithm, absolute value
sine, cosine, tangent, cotangent, arcsine, arccosine, arctangent, arccotangent, hyperbolic sine, hyperbolic cosine
variable x
natural numbers 0-9, decimal point (.)
constant pi, Napier’s number (or Euler’s number)

unit of measure of trigonometric functions: degrees or radians

In addition, there are two keys for navigation inside the expression:
-Delete last entry
-Right exit from a block brackets

In summary Xfunction is intuitive, fast, powerful and reliable.
Tested on major commercial devices with resolution: QVGA, WQVGA400, HVGA, WVGA800, WVGA854, WXGA with Android version 2.1 or higher.
There are no advertising.
Low price, high satisfaction.

Link to Android Google Play XFunction page

Link to Youtube XFunction video




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Last edited by ergipuma; July 15th, 2012 at 11:29 AM.
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Old July 15th, 2012, 11:27 AM   #2 (permalink)
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Default Video now available!

XFunction android application - YouTube
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