Re: Python programming problem

Hi, Ken. I ran the program code you had put in your email.It wasn't the affect 
I wanted. I was making a program which produced the sequence 2, 4, 7, 10, 14, 
18, 23, 28, 34, 40 and so on. In other words, you notice for the first two 
digits 2, and 4 it skips by two. For the second set of numbers 7, and 10 it 
skips by three. For 14, and 18 it skips by four, and so on. I had succeeded in 
making such a program. I had mistakenly put two equal signs in the statements 
after the "if count == new_count" statement. I got rid of the extra equal signs 
and now the program works perfectly.

Gilbert Neiva

  ----- Original Message ----- 
  From: Ken Perry 
  To: programmingblind@xxxxxxxxxxxxx 
  Sent: Sunday, May 18, 2008 7:55 PM
  Subject: RE: Python programming problem


  Gilbet why are you using so many variables?  If you can't  use recursion you 
could do it this way.  If you can use recursion you could get this even smaller.

  #The following program will calculate the following math sequence
  #2 4 7 10 14 18 23 28 and so on.
   
  #value is the value you want to print starts at 0;
  value=0

  #index Is the addition index starts at 2
  index=2

  #old index is the previous index starts at 1
  old_index=1

  while index < 30:
  #The above line while index < 30 
  #tells the program to loop until the variable
  #index reaches 30

  #the if statement checks to see if we have already added this index 
  #if we have added this current index value we add it again and increment the 
index
  # if we have not we add the index to the value and increment the old_index
   if old_index == index:
    value+=index
    index+=1
   else:
     value+=index
     old_index+=1


  #The following line will display the value 
  #As the program loops, the output will not go line by line
   print value,
   




------------------------------------------------------------------------------
  From: programmingblind-bounce@xxxxxxxxxxxxx 
[mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Gilbert Neiva
  Sent: Sunday, May 18, 2008 6:30 PM
  To: programmingblind@xxxxxxxxxxxxx
  Subject: Re: Python programming problem


  Thanks. It worked. I always thought that in an if statement, you always need 
two equal signs if something equaled something else. But I got rid of the extra 
equal signs and the program works the way I want it to now. It produces the 
right sequence of numbers.

  Gilbert Neiva

    ----- Original Message ----- 
    From: rrdinger 
    To: programmingblind@xxxxxxxxxxxxx 
    Sent: Sunday, May 18, 2008 5:52 PM
    Subject: Re: Python programming problem


    Hi Gilbert,

    I'm not certain exactly what sequence you are trying to produce, but I 
think the statements you have in your if block are probably wrong.

    You have:
     if count == new_count:
      new_count == new_count+2
      c == c+1

    Those two statements are comparisons and result in either True or False, 
you probably want:

     if count == new_count:
      new_count = new_count+2
      c = c+1

    A handy short hand for such statements is:
     if count == new_count:
      new_count += 2
      c += 1

    HTH

    Richard
      ----- Original Message ----- 
      From: Gilbert Neiva 
      To: programmingblind@xxxxxxxxxxxxx 
      Sent: Sunday, May 18, 2008 10:38 AM
      Subject: Python programming problem


      I am trying to make a program that makes the math sequence 2, 4, 7, 10, 
14, 18, 23, 28 and so on. But when I run the program it does the math sequence 
2, 4, 6, 8, 10 and so on. Here is the program code below.

      #The following program will calculate the following math sequence
      #2 4 7 10 14 18 23 28 and so on.

      #The following lines will create three variables a, b, and c with
      #values of 2, 0, and 0
      a = 2
      b = 0
      c = 0
      #The following line will create a variable count
      #with  a value of 0
      count = 0
      #The following line will create a variable new_count
      #with a value of 2
      new_count = 2
      #The following line will create a variable max_count
      #with a value of 30
      max_count = 30
      while count < max_count:
      #The above line while count < max_count:
      #tells the program to loop until the variable
      #count reaches 30
      #The following line will create a variable d
      #witch will equal the formula a+b+c
       d = a+b+c
      #The following line will make b equal to d
      #as the program runs, the values within these two variables will change
       b = d
      #The following line will increase the variable count by 1
      #each time the program loops
       count = count+1
      #The following if statement will tell the program to increase
      #the new_count variable by 2 and the c variable by 1
      #if the count variable is equivalent to the new_count variable
       if count == new_count:
        new_count == new_count+2
        c == c+1
      #The following line will display the value of d
      #As the program loops, the output will not go line by line
       print d,

      What am I doing wrong?

      Gilbert Neiva

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