[Tutor] Gaussian function

[optimum]

Hey. Is there anyone who can give me some help? 
I am having trouble with the gaussian function and don't really know where
to start.
Below is the question I was set.

"Write a program which asks the user for values
of xmin, dx and nx. The program should then
output a plot of the gaussian function


at the following series of values of x:
xmin, xmin+dx, xmin+2*dx, xmin+3*dx, : : :,
xmin+(nx-1)*dx. e.g. the following output
should result if xmin = 2:5, dx = 0:5 and
nx = 11.
-2.50 *
-2.00 ***
-1.50 ******
-1.00 ************
-0.50 ******************
0.00 ********************
0.50 ******************
1.00 ************
1.50 ******
2.00 ***
2.50 *
The program should contain and make full use
of the following functions:
gauss(x) - Returns the value of the Gaussian
function

line(n) - Prints a line of n asterisks followed
by a newline character.

You will need to choose a scale for your plot;
in the example shown the number of asterisks
is 50 * gauss(x).

Should I start with a program like this?

    s=''
    for n in range (0,100):
    s=s+ '*'
    print s

Thanks for any help received. :confused:
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