Here it is.
--This was made by Adam9812. It is public domain.
--Interest Calculator 1.9.1
function setup()
print("Principle: Starting Number")
print("Rate: Rate interest is added or subtracted per year.")
print("Time: Time passed in Years.")
print("Simple: Whether simple or compound interest is calculated.")
print("Compoundrate: The amount of time interest is compounded per year.(Only matters if simple is false)")
print("Interest: Amount of added interest")
interest = 0
parameter.number("principle",.01,10000,1)
parameter.number("rate",.01,1,.5)
parameter.number("time",1,100,5)
parameter.boolean("simple",true)
parameter.number("compoundrate",1,12,1)
parameter.watch("interest")
end
function draw()
background(192, 192, 209, 255)
if simple then
interest = principle * rate * time
else
interest = principle * ((1 + rate/compoundrate) ^ (compoundrate* time) - 1)
end
fill(0, 0, 0, 255)
font("AmericanTypewriter-Light")
fontSize(90)
str=string.format("Total: %.2f",principle+interest)
text(str,WIDTH/2,HEIGHT - 90)
end