Programming Forums > Script Programming > Ruby

ggeo1 · Sep 26th, 2007, 9:57 AM

Hello, i am a new ruby user and i started reading it the last days.
Generally,i know a few things from C++ .

I wrote a program which gives the amount of a radionuclide remaining after a period of time.I want to use the split command but somewhere i am making a mistake and i don't know where.I am giving you the code:

Quote:

#!/usr/bin/env ruby

puts " Give initial amount in mg,half life time in days and period of time at which to find amount remaining : "
data = gets.to_f
initial_amount,half_life,time = data.split(" ")

initial_amount = initial_amount.to_f
half_life = half_life.to_f
time = time.to_f

amount_remaining = initial_amount * (0.5) ** (time / half_life)
amount_remaining = amount_remaining.to_f

puts " The amount remaining in mg is = "
puts amount_remaining

Thanks

Arevos · Sep 26th, 2007, 10:49 AM

Quote:

Originally Posted by ggeo1

(Toggle Plain Text)

data = gets.to_f
initial_amount,half_life,time = data.split(" ")

You can only split a string, not a number. "gets" returns a string, but "to_f" turns it into a number (or to be more exact, a float). Get rid of the "to_f" for this line.

ggeo1 · Sep 26th, 2007, 11:03 AM

OK!

Thanks!

It worked!

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Sep 26th, 2007, 11:03 AM	#3
ggeo1 Newbie Join Date: Sep 2007 Location: Greece Posts: 2 Rep Power: 0	OK! Thanks! It worked!

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