I am working on an RPG and I've mostly followed formulas from the Dragon Quest series and they've all been fairly simple. (For example,
dmg = (Attack/2 - Defense/4), where
Experience points are more complicated though. I want one of the characters to level more slowly compared to the others. I'm not comfortable with the maths, but how would I go about creating a suitable exponential growth formula that is slow from let's say levels 1 through 40 and then speeds up to 99?