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designium/mortgageCalc.rb

Forked from JGallardo/mortgageCalc.rb
Created July 18, 2019 16:37
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Very basic script in Ruby to calculate mortgage payments.
Raw
mortgageCalc.rb
print "enter loan amount: "
loan = gets.chomp.to_i
print "Enter length of time in months: "
time = gets.chomp.to_i
print "Enter interest rate: "
rate = gets.chomp.to_f/100
i = (1+rate/12)**(12/12)-1
annuity = (1-(1/(1+i))**time)/i
payment = loan/annuity
puts "\n$%.2f per month" % [payment]
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