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Mark Weinberg
3,002 PointsAssign the constant E inside of the Math module to the instance variable @e.
I'm having trouble with Challenge Task 1 of 3 which is to "Assign the constant E inside of the Math module to the instance variable @e." Can someone show me what the correct code is so I can learn from it?
@pi = nil
@e = nil
@sqrt = nil
module Math::E
@e = nil
end
4 Answers
Omar Sanseviero
8,770 PointsIn the previous video, in the code samples, you see how to do this:
puts Math::E # => 2.718281828459045
puts Math::PI # => 3.141592653589793
puts Math.sqrt(9) # => 3.0
puts Math.cos(1) # => 0.5403023058681398
puts Math.hypot(2, 2) # => 2.8284271247461903
puts Math.log(2, 10) # => 0.30102999566398114
puts Math.log(2, 12) # => 0.2789429456511298
The problem says: "Assign the constant E inside of the Math module to the instance variable @e.".
You need to make @e equal to the constant already defined, E. So the only thing you need to tell Ruby is say which is the module (Math). Then: @e = Math::E
Mia Nguyen
4,514 PointsIt works this way
module Math
puts Math::E = @e
end
Sean Flanagan
33,235 PointsThank you Omar and Mia for your input. It's a big help. I've upvoted both posts.
Kasia Ekiert
Courses Plus Student 13,248 Pointsmodule Math puts Math::E = @e end