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Ruby Ruby Modules Ruby Core Modules Math

Posted by Matthew Delange
Matthew Delange
26,584 Points

Using the sqrt method in the Math module, assign the value of the square root of 9 to the variable @sqrt.

I have found others that have had trouble with this challenge. I'm wondering if anyone has completed it. I have tried everything but nothing is working.

math.rb 
@pi = nil
@e  = nil
@sqrt = nil

module Math

  Math::E = @e
  Math::PI = @pi
  @sqrt = Math.sqrt(9)

end

3 Answers

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher
Jennifer Nordell
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Take the sqrt line and put it after the end. It doesn't want it inside of the module. Hope this helps!

Nickolas Fuentes
Nickolas Fuentes
14,016 Points
Nickolas Fuentes
Nickolas Fuentes
14,016 Points

Thanks I was wondering why it wasn't working. Even in the question it says in the math module, which is strange.

Zulèma van Gom
Zulèma van Gom
3,493 Points
Zulèma van Gom
Zulèma van Gom
3,493 Points

@pi = nil @e = nil @sqrt = nil

module Math Math::E = @e Math::PI = @pi Math.sqrt(9) = @sqrt end

why is this wrong?

please advice...

thank you in advance <3

Frederick Cowgill
Frederick Cowgill
26,293 Points
Frederick Cowgill
Frederick Cowgill
26,293 Points

This worked for me, hope this helps someone :)

@pi = nil @e = nil @sqrt = nil

module Math

Math::E = @e Math::PI = @pi end

@sqrt = Math.sqrt(9)