The around
function is used to round an array of floats to a given number of decimals. It comes with numpy, which is a widely used library of the high-level programming language Python.
To use the around
function, the around
library must be imported at the program’s start.
import numpy
numpy.around(a, decimals=0, out=None)
The around
function takes in the following parameters:
a
- an array of floats on which the around
function will be applied.decimals
- (optional) the number of decimals to which the values in a
will be rounded. By default, its value is 0.out
- (optional) the location where the return value of the around
function will be stored.The around
function returns an array with the same dimension as that of ``and contains rounded values of type float.
If
a
contains complex numbers, the real and imaginary parts are rounded separately.
The following example demonstrates how to round an array of floats up to 3 and subsequently 4 decimal numbers.
The return value is printed using the built-in print
function, which comes with Python.
import numpyprint(numpy.around([2.51231, 6.12351, -6123.123123], 3))print(numpy.around([2.51231, 6.12351, -6123.123123], 4))