# tensorplay.functional.isreal

Source: https://www.tensorplay.cn/docs/generated/tensorplay.functional.isreal.html

```python
tensorplay.functional.isreal(input) → Tensor
```

Returns a new tensor with boolean elements representing if each element of input is real-valued or not.
All real-valued types are considered real. Complex values are considered real when their imaginary part is 0.

Parameters:

input ([Tensor](/docs/generated/tensorplay.Tensor.html#tensorplay.Tensor)) – the input tensor.

Returns:

A boolean tensor that is True where input is real and False elsewhere

Example:

```
>>> tensorplay.isreal(tensorplay.tensor([1, 1+1j, 2+0j]))
tensor([True, False, True])
```