Difference between revisions of "KmPlot/Using Sliders/fr"

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A main feature of '''KmPlot''' is to visualize the influence of parameters to the curve of a function.  
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Une fonctionnalité principale de '''KmPlot''' est de visualiser l'influence des paramètres d'une fonction sur une courbe.  
  
 
==Moving a Sinus Curve==
 
==Moving a Sinus Curve==

Revision as of 21:24, 7 July 2012

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Une fonctionnalité principale de KmPlot est de visualiser l'influence des paramètres d'une fonction sur une courbe.

Moving a Sinus Curve

Let's see, how to move a sinus curve left and right:

  • Create a new Cartesian plot.
  • Enter the equation
    f(x,a) = sin(x-a)
  • Check the Slider option and choose Slider No. 1 from the drop down list.
  • To make the available sliders visible, check View -> Show Sliders

Now you can move the slider and see how the parameter value modifies the position of the curve.

Trajectory of a Projectile

Now let's have a look at the maximum distance of a projectile thrown with different angles. We use a parametric plot depending on an additional parameter which is the angle.

  • Define a constant v_0 for the starting velocity.
  • Create a new parametric plot
  • Enter the equations
    f_x(t,α) = v_0∙cos(α)∙t
    f_y(t,α) = 2+v_0∙sin(α)∙t−5∙t^2
  • Check the Slider option and choose Slider No. 1 from the drop down list.
  • To make the available sliders visible, check View -> Show Sliders

Now you can move the slider and see how the distance depends on the parameter value.

Kmplot projectile.gif

This page was last edited on 7 July 2012, at 21:24. Content is available under Creative Commons License SA 4.0 unless otherwise noted.