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Ruby Ruby Modules Ruby Core Modules Math

Posted by niloufarsedarati
niloufarsedarati
Courses Plus Student 17,665 Points

What's the problem with my sqrt() in ruby math challenge ?

I'm using the sqrt method but still have a problem :-|

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

1 Answer

Nejc Vukovic
.a{fill-rule:evenodd;}techdegree seal-36
Nejc Vukovic
Full Stack JavaScript Techdegree Graduate 51,574 Points

Hi.

Well your error is this line:

Math.sqrt(9) = @sqrt    //this is not correct because this means you are setting the value to Math.sqrt(9) to the value of @sqrt

Just swap this line and your code should look like this:

@pi = nil
@e  = nil
@sqrt = nil
module Math
  Math::PI = @pi
  Math::E = @e
end

 @sqrt = Math.sqrt(9)

Be careful - In programming when you declare a variable the variable is passed the value thats on the right side of =

Hope this helped.

niloufarsedarati
niloufarsedarati
Courses Plus Student 17,665 Points

Hi , I did this inside the module and I got error. Thank you for your quick response :)

Nejc Vukovic
.a{fill-rule:evenodd;}techdegree seal-36
Nejc Vukovic
Full Stack JavaScript Techdegree Graduate 51,574 Points

Welcome :)