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I want to make this simple program that returns the weight quantity by choosing the units. When I run the program it runs with no problems and asks the two questions in if but doesn't return the value
Here is my code:
puts "What is your starting weight and ratio unit?
1:kg.m/h
2:gm.m/s
3:mm.m/s"
inputing_unit = gets.chomp
puts "What is your ending weight and ratio unit?
1:kg.m/h
2:gm.m/s
3:mm.m/s"
ending_unit = gets.chomp
if inputing_unit == 1 and ending_unit == 1 then
puts "What is your weight?"
input_weight = gets.chomp.to_i
puts "What is your ratio?"
input_ratio = gets.chomp.to_i
puts "Your moving value is #{input weight * input_ratio}"
end
As I can see from that screenshot in the beginning of the description on pre-last line where is your puts statement there is a typo #{input weight * input_ratio}. You should change ...#{input weight... to ...#{input_weight... (with a dash).
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Please output the number obtained by adding a and b.
At the end of the line break, do not include extra characters, blank lines.
expmple1
1 1
result1
2
expmple2
0 99
result2
99
My code is:
input_lines = gets.chop
a = input_lines[0]
b = input_lines[1]
puts a + b
But it's not working, please help.
Add split to the chopped gets would work:
input_lines = gets.chop.split
a = input_lines[0].to_i
b = input_lines[1].to_i
puts a + b
Try it.
Check String doc.
More DRY way to do it:
input_lines = gets.chop.split.map(&:to_i)
a,b = input_lines
puts a + b
In this case the numbers inside input_lines already changed to Integers.
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I would like to validate master card for New series The BIN range (222100-272099). currently I have Regular expression for existing mastercard series...5[1-5][0-9]{14}
Edit : based on the comment of Kul-Tigin
When working with numbers this may be easier :
Title = "Valid card number or not"
Do
CardNumber = InputBox("Please type your card number ",Title,"222100")
If IsValidcard(CardNumber) = True Then
MsgBox CardNumber & " The Card number is valid !",64,Title
Else
MsgBox CardNumber & " The Card number is not valid !",16,Title
End if
Loop Until CardNumber = ""
'**********************************************************************
Function IsValidCard(Num)
IsValidCard = False
Set regEx = New RegExp
regEx.Pattern = "^\d{6}$"
If regEx.Test(Num) then
x = CDbl(num)
if x >= 222100 AND x <= 272099 Then
IsValidCard = True
Else
'not in range
End If
Else
'not 6 digits
end if
End Function
'**********************************************************************
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I'm trying to do a simple math operation, but I'm stuck.
Ask user to introduce an amount of money:
puts "Capital to deposit"
capital = gets.chomp
Ask user to introduce a fixed number of days:
puts "Indicate days of deposit"
deposit_time = gets.chomp
I made the following array with the only possible answers for step #2:
deposit_time = [30, 45, 60]
I need a multiplication operation that depends on what the user chooses in step #2. For instance, let's suppose the user chooses 30. I would need the code to read:
capital = 10
deposit_time = 30
to multiply 10 * 1.0219 and print the resulting number: 10.219. Any ideas?
Use a hash, not an array.
deposit_rates = { 30 => 1.0219, 45 => 1.0336, 60 => 1.0467 }
deposit_time = gets.to_i
deposit_rate = deposit_rates[deposit_time]
# will be `nil` if not one of the defined ones
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I am trying to make n random numbers from -0.5 from to 0.5
and I made a function like this
def create_noise(n)
end
I found an implementation of this but i don't think this works
randoms = Set.new
loop
randoms << rand(max)
return randoms.to_a if randoms.size >= n
You would just do
def create_noise(n)
n.times.collect { rand(-0.5..0.5) }
end
that will spit back an array like this:
[-0.034680737617880486, 0.34802029078157803, 0.1346483808607455, 0.12155616615186282, -0.41043213731234474]
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I use the excellent faker gem to generate random words for my models. Eg. product.name = Faker::Lorem.word
Sometimes I need to generate a sentence, and I want the length of the sentence to
vary each time.
How to achieve this with ruby?
How about:
result = rand(max_size).times.map { produce_word }
Since you have not provided enough information, this is my approach, [*1..100].sample will return a random number between 1 and 100, so looping that times the string which is returned bya method named get_word will get stored in the array word_array
word_array = []
[*1..100].sample.times do
word_array << get_word
end