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Question: How Can I plot a funcion with undefined constants??

Question:How Can I plot a funcion with undefined constants??

doraimom 16 Maple
January 04 2008
0
Hi, I'd like to know how I can plot a simple math function that has undefined constants on it. For exemple, k*x^2 - k*x^4. Here x is my variable and k is the undefined variable. This function is plottable, bacause I can plot it with my hands... You derivate the function, get the critical poits, then look at the concavite of the function in each of those points by looking at the sign of the second derivate, and then you get a plot with critical points being functions of k which I assume is always greater than zero. From what I have found in all tutorials, books and forums, they teach only to plot numerical functions. But I can't really believe maple can't plot these functions I need. Another example would be x = k. It's a simple function where you get a horizontal line crossing the y axe in the k point. So, even if k is undefined it's still plottable. I think I made my point. Thanks.
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