Help with this equation/program

[makuab]

Im trying to make a program that calculates the amount of time required to get a certain skill to a certain level.

I looked for the formula to determine the amount of XP needed for a given level.

http://images.wikia.com/wikitex/images/c/ce/cea/0c35159ec08535e346288841cce731.png

Im new to python and programming in general, can an equation like this even be used in python?

I dont understand this formula, can someone explain it?

from http://runescape.wikia.com/wiki/Skills

[simeon87]

That's a summation, see Summation (http://en.wikipedia.org/wiki/Summation) for what this notation means. After that, you can implement it in Python with a for loop.

[StephenF]

def xp_for_level(lev):
return sum(n / 4 + 75 * 2 ** (n / 7) for n in range(1, lev))

You know about functions yet, right?

[makuab]

I dont understand functions at all

[simeon87]

I dont understand functions at all

Just let us know if you have questions.

[DanielWaterworth]

I dont understand functions at all

Try this. Open up a python shell, (by typing 'python' in a terminal) and copy in the following:

def xp_for_level(lev):
return sum(n / 4 + 75 * 2 ** (n / 7) for n in range(1, lev))Then type:

xp_for_level(10)And it'll print out the xp for whatever level you put in place of 10.