November 19, 2008 01:11am pst

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1. RichieHin... 267,790
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08.18.2008 at 03:26PM PDT, ID: 23657938 | Points: 500

	[x] Attachment Details

Calling Gaussian function-Python-Beginner

Asked by optimum_ in Python Scripting Language

I was set this question in class, I wrote most of the code, but I cant get the same output as required.
Below is the code I wrote, any help on this is greatly appreciated/

"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).
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             from __future__ import division
import math
 
a=raw_input("What is the value of xmin?")
b=raw_input("What is the value of dx?")
c=raw_input("What is the value of nx?")
 
xmin=float(a)
dx=float(b)
nx=int(c)
n=int(c)
l=[]
 
for x in range(0.00,n):
    print xmin+x*dx
 
def line(n):
    s=''
    i=raw_input("Please choose a scale for your plot")
    n=int(i)
    for j in range(0.00,n):
        s= s+ "*" + "\n"
        print s
        return s
        
def gauss(x):
    gaussa=math.pi(2)
    gaussb=math.sqrt(gaussa)
    gaussc=1/gaussb
    gaussd=math.exp(-0.5*-2.00**2)
    gausse= gaussc*gaussd
    return gausse
    print gausse
 
line(gauss)
print line(gauss)   
 
 
MY OUTPUT WAS
 
What is the value of xmin?-2.5
What is the value of dx?0.5
What is the value of nx?11
-2.5
-2.0
-1.5
-1.0
-0.5
0.0
0.5
1.0
1.5
2.0
2.5
Please choose a scale for your plot100
*
 
Please choose a scale for your plot100
*
 
*

           
         

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