trunc() in Python
Truncate in Python
There are many built-in modules in python. Out of these module there is one interesting module known as math module which have several functions in it like, ceil, floor, truncate, factorial, fabs, etc.
Out of these functions there is an interesting function called truncate which behaves as a ceiling function for negative number and floor function for positive number.
In case of positive number
3.0 3 4.0
In case of negative number
-4.0 -3 -3.0
This is because the ceiling function is used to round up, i.e., towards positive infinity and floor function is used to round down, i.e., towards negative infinity.
But the truncate function is used to round up or down towards zero.
Diagrammatic representation of truncate function:-
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