Python basic maths

Question

My friend wrote up this script for me to calculate the quantity of construction materials needed for a theoretical site.

It basically takes 2 numbers and increases them independently until the large number reaches 50,000. It then prints a list like this:

20000:6.40,21000:6.61,22000:6.82,23000:7.03,24000:7.24,25000:7.45,26000:7.66,27000:7.87,28000:8.08,29000:8.29,30000:8.50,31000:8.71,32000:8.92,33000:9.13,34000:9.34,35000:9.55,36000:9.76,37000:9.97,38000:10.18,39000:10.39,40000:10.60,41000:10.81,42000:11.02,43000:11.23,44000:11.44,45000:11.65,46000:11.86,47000:12.07,48000:12.28,49000:12.49,50000:12.70

I need to make a small edit to the code so that the small number is multiplied by 1.225 when it is printed. I do not want this to be compounded as I want to keep the increment the same.

getbingint = input("Enter big start value: ")
getbiginc = input("Enter big increment value: ")
getsmallint = input("Enter small start value: ")
getsmalinc = input("Enter small increment value: ")
getbigend = input("Enter big end value: ")
string = ""
while getbingint <= getbigend:
 string += str(getbingint) + ":" + str("%.2f") % getsmallint + "," 
 getbingint += getbiginc
 getsmallint += getsmalinc
print string
raw_input()

• lutz: Why do you call the third parameter getsmallint when it's obviously a float?

Answer 1

Replace the line:

string += str(getbingint) + ":" + str("%.2f") % getsmallint + "," 

with

string += str(getbingint) + ":" + str("%.2f") % (getsmallint*1.225) + "," 

Answer 2

here's another version

getbingint = input("Enter big start value: ")
getbiginc = input("Enter big increment value: ")
getsmallint = input("Enter small start value: ")
getsmalinc = input("Enter small increment value: ")
getbigend = input("Enter big end value: ")
for i in range(getbingint,getbigend,getbiginc+1):
 getsmallint += getsmalinc
 print str(i) +":"+ str("%.2f") % (getsmallint*1.225) + ",",

Answer 3

You can replace string += str(getsmallint) with string += str(getsmallint*1.225)

• Tom: "This is unreadable" Sorry, I tried to explain best I could.