math
Pixeltable UDFs for mathematical operations.
Example:
import pixeltable as pxt
t = pxt.get_table(...)
t.select(t.float_col.floor()).collect()
abs(self: Float) -> Float
Return the absolute value of the given number.
Equivalent to Python builtins.abs().
bitwise_and(self: Int, other: Int) -> Int
Bitwise AND of two integers.
Equivalent to Python
self & other.
bitwise_or(self: Int, other: Int) -> Int
Bitwise OR of two integers.
Equivalent to Python
self | other.
bitwise_xor(self: Int, other: Int) -> Int
Bitwise XOR of two integers.
Equivalent to Python
self ^ other.
ceil(self: Float) -> Float
Return the ceiling of the given number.
Equivalent to Python float(math.ceil(self)) if self
is finite, or self itself if self is infinite. (This is slightly different from the default behavior of
math.ceil(self), which always returns an int and raises an error if self is infinite. The behavior in
Pixeltable generalizes the Python operator and is chosen to align with the SQL standard.)
floor(self: Float) -> Float
Return the ceiling of the given number.
Equivalent to Python float(math.floor(self)) if self
is finite, or self itself if self is infinite. (This is slightly different from the default behavior of
math.floor(self), which always returns an int and raises an error if self is infinite. The behavior of
Pixeltable generalizes the Python operator and is chosen to align with the SQL standard.)
pow(self: Int, other: Int) -> Float
Raise self to the power of other.
Equivalent to Python self ** other.
round(self: Float, digits: Optional[Int] = None) -> Float
Round a number to a given precision in decimal digits.
Equivalent to Python builtins.round(self, digits or 0).
Note that if digits is not specified, the behavior matches builtins.round(self, 0) rather than
builtins.round(self); this ensures that the return type is always float (as in SQL) rather than int.