KwickClips Python · 41 sec · free
Why does square root need import?
Short answer. It lives in the math module.
What is a user-defined function?
A function you write yourself with def.
Where functions come from
| Kind | Example |
|---|---|
| Built-in | print() |
| Module | math.sqrt() |
| User-defined | bill() |
Remember
| Built-in: always ready |
| Module: import first |
| User-defined: def |
Why does print just work, but square root needs import? Built-in ones like print are always ready. Module ones need import first. User-defined ones, you write yourself. Built-in is ready. Module needs import. User-defined uses def.
This clip is from the full lesson: User-defined Functions: Defining, Calling and Returning Values — 7 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 10 Information Technology (402), CBSE Class 11 Computer Science (083), CBSE Class 11 Computer Science (083), CBSE Class 11 Computer Science (083)
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