Hello,

I am working on a problem that I can't seem to figure out the plot commands in Maple. The problem is this...

Given a family of surfaces described by z=(ax^2 +by^2)*(exp(-x^2*-y^2))

I need to obtain a 3D plot of these surfaces and, from the graph of the surfaces, explain how constants a and b will change the shape of the graph. I cannot find the syntax required so plot such a function, but I have been trying using spacecurve(). Does the equation...

Hello, so while I am toying with Maple and some excersizes, I have realized my skills aren't what I thought they were from when I last used Maple 8. I swear the program gets smarter and returns more errors now that I cannot properly define some functions.

For example, I have attempted to plot the vector function r(t)=<cos(t), sin(t), exp(sin(t))>. Required, in the same plot region, same graph, is to plot A) the function r(t), B) the derivative r'(t) AND the C...

I have a more relavant form of a question regarding procedures. I need to write a procedure with parameter f(x) and result in the plot of the function f(x) along with the plot of the curvature of f on the same graph. Ideally, parameter f(x) could be requested to be any function, such as x^2 or cos(x). I am new to procedures and do now know where to begin, even at such a basic level.

Any assistance greatly appreciated.

I am using Maple 14 and struggling with writing procedures. Here is an example of what I need to be able to program. I require a procedure which will receive as a parameter a function f(x) and plot that function (say in red) along with the curvature function (say in blue) on the same graph. Sample parameters include the functions f(x)=x^2 or sin(x) or exp(-x^2).

I feel somewhat confident in my maple commands, but procedures are a whole new thing to me. If even a basic...