# NumPy - bitwise_or() function

The Bitwise OR operator (|) is a binary operator which takes two bit patterns of equal length and performs the logical OR operation on each pair of corresponding bits. It returns 1 if either or both bits at the same position are 1, else returns 0.

Bit_1Bit_2Bit_1 | Bit_2
000
101
011
111

The example below describes how bitwise OR operator works:

```50 | 25 returns 59

50    ->    110010  (In Binary)
| 25    ->  | 011001  (In Binary)
----        --------
59    <-    111011  (In Binary)
```

The NumPy bitwise_or() function computes the bitwise OR of two arrays element-wise. This ufunc implements the C/Python operator |.

### Syntax

```numpy.bitwise_or(x1, x2, out=None)
```

### Parameters

 `x1, x2` `Required. `Specify the arrays to be operated. Only integer and boolean types are handled. If x1.shape != x2.shape, they must be broadcastable to a common shape. `out` `Optional. `Specify a location into which the result is stored. If provided, it must have a shape that the inputs broadcast to. If not provided or None, a freshly-allocated array is returned.

### Return Value

Returns the result of bitwise OR operation. This is a scalar if both x1 and x2 are scalars.

### Example:

In the example below, the bitwise_or() function is used to compute the bitwise OR of two scalars.

```import numpy as np

x = 50
y = 25

#Bitwise OR operation
z = np.bitwise_or(x, y)

#Displaying the result
print("z =", z)
```

The output of the above code will be:

```z = 59
```

### Example:

The bitwise_or() function can be used with arrays where it computes the bitwise OR of two arrays element-wise.

```import numpy as np

x = np.array([[10, 20],[30, 40]])
y = np.array([[40, 30],[20, 10]])

#Bitwise OR operation
z = np.bitwise_or(x, y)

#Displaying the result
print("z =")
print(z)
```

The output of the above code will be:

```z =
[[42 30]
[30 42]]
```

❮ NumPy - Binary Operators

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