Terms beginning with N

This section lists definitions of any terms that begin with the letter n.

What does the term "Name error" mean?

A type of error. This is when the computer doesn’t know of any variable with that name. Usually this happens when you’ve misspelled a variable (even if the letters are correct – the capitalisation must be exact too), or haven’t declared it (stated what you’re going to put in it).

What does the term "Null value" mean?

An error that is returned for variables that do not have a value. In Python, null values could be either because the code is expecting a number but the variable hasn’t stored it as such (NaN) or because the variable is not applicable (N/A) in this context for some reason. In other programming languages, a […]

What does the term "Numpy" mean?

A scientific calculations module for the Python programming language.

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