I added in the description that the argument is always a floating-point number.

I'll add some.

Which language?

Added your suggestion to the description text.

Which language?

Added the test case.

In which language?

Changed , to . in the description. Also changed the method name in Java.

Changed code to two arguments

Changed code to two arguments

I think it's clear that it's a number, because I always use the word "number".

But I think it's a good Kata for beginners.

C#.NET

In C# all visible tests work, but if I click submit all tests fail. Is there a problem with the tests or does the error belong to my code?

Why should Test 10 be false? I think it should be true.