GraphViewer - Scientific Calculator for your mobile
GraphViewer - Scientific Calculator for your mobile

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How To...


Insert an equation

  • Choose in the main menu to plot a new equation
  • You'll see the default equation x is loaded

 

  • Choose the Insert command (on most devices this is the fire button or pressing the joystick)
  • You'll see the different functions that can be inserted
  • Scroll up (or downwards) untill sin(x) is shown
  • Choose the Insert command
  • The function will be inserted

 

  • Choose Plot, if you want to view the Graph

 


Plot a sample equation

  • Go to the main menu and select the Samples item
  • Choose the sample you like to plot (e.g. Climbing sine)
  • You'll see the equations of the sample
  • Open the Options menu (On most devices this can be done by the left selection key)

 

  • Choose Plot, if you want to view the Graph
  • You'll see the sample right now

 

  • You can zoom in (5) out (0), move (arrows), evaluate the function (left selection key -> "Evaluate function") or show the function table (left selection key -> "Show Table")

Save an equation

  • Go to the Graph Options of the equations you want to save.
  • Open the Options menu (On most devices this can be done by the left selection key)

 

  • Choose the "Save as Sample" option

 

  • You can enter the name of the new sample (e.g. my equations) and choose OK
  • You'll see a message when your sample is succesfully saved
  • When you open the Samples-menu, you'll see your own added sample

 

  • Next time you start GraphViewer, your sample will still be there (even sorted alphabetically) in the sample-menu

Calculate the derivate in a point of the function

  • Start the Calculator from the main menu
  • Enter the equation inside D( ) (E.g. D(x^2) to calculate the derivate in any point of x^2)

 

  • Select the appropriate X Value, where you want to calculate the derivate (E.g. 3)

 

  • When you hit the Calculate button, the derivate will be calculated in the chosen point.

Calculate a definite integral

  • Start the Calculator from the main menu
  • Insert the integral you want to calculate in the form I(x1, x2, f): this will calculate the definite integral between x1 and x2 of function f (e.g. I(2,4,x) will calculate the area under the graph f(x)=x for x between 2 and 4.
    or more formaly, this will calculate:

Use a white background

  • Open the Settings from the main menu
  • Unmark the Black Background option

 

  • Choose OK from the Options menu (or hit the OK button)


Designed by Tim Vermeiren (2016)
Translated by Tim Vermeiren