use of thr calculator

mess-mate:

Hello all, i'd like change my grapg settings. How can i do that ?
thanks

I assume you mean graph settings!

At the bottom of the graph is an input area which will contain something like: plot((x^2), x=-10..10, 0..100) (the values will be different depending on your function). You can simply click into this and change the range of the x values, where it says x= , and the y-range, which follows the x values after the comma, but for some reason doesn't begin y= ! In each case make sure you put .. (i.e. two dots) between the lower and upper values of the range of interest.

Thanks for the quick reply, Alan.
I want for ex. a plot on the x-axis from 0 to 5 and on the y-axis from 0 to 8.
No neg. x or y.

mess-mate:

Thanks for the quick reply, Alan.
I want for ex. a plot on the x-axis from 0 to 5 and on the y-axis from 0 to 8.
No neg. x or y.

Ok, so if I use the calculator to plot, say, f(x) = 2x + 1 the default value of the plot is shown as plot(2*x+1, x=-360..360, -898.75..901.25) (weird default!!)

By changing this at the bottom of the graph to plot(2*x+1, x=0..5, 0..8) we get the following:
Graph.PNG

Sorry, no way.
Added a snapshot.

...forgot the eq.

h = 20t − 4.9t2

mess-mate:

...forgot the eq.

h = 20t − 4.9t2

You can certainly plot that here (using x instead of t), but the graphing calculator on this site is very "clunky"! You might be better off using another online plotter, such as that at Wolfram Alpha http://www.wolframalpha.com/ for example. This gives:
Graph2.PNG

Alan, thanks, that works.
best regards