Changing string variable value within Sub

[bplus]

@dplus - I'm passing an integer to a function that expects a double - that's an error. I was just wondering why there's no error message.
If one did something like that in a real program, the result would be incorrect.

In an important program, it could be a disaster.

error! no dplus here try aplus

@KP say the word and I will delete this post and leave you to Steve's great lecture