﻿ Python Math: Square root and exponential of the specified decimal number - w3resource # Python Math: Square root and exponential of a given decimal number

## Python Math: Exercise-38 with Solution

Write a Python program to get the square root and exponential of a given decimal number.

Sample Solution:-

Python Code:

``````from decimal import *
x = Decimal('1.44')
print("Square root of ",x, " is :", x.sqrt())
print("exponential of ",x, " is :", x.exp())
```
```

Sample Output:

```Square root of  1.44  is : 1.2
exponential of  1.44  is : 4.220695816996552825673328929
```

Flowchart: Python Code Editor:

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## Python: Tips of the Day

Python: Get the Key Whose Value Is Maximal in a Dictionary

```>>> model_scores = {'model_a': 100, 'model_z': 198, 'model_t': 150}
>>> # workaround
>>> keys, values = list(model_scores.keys()), list(model_scores.values())
>>> keys[values.index(max(values))]
'model_z'
>>> # one-line
>>> max(model_scores, key=model_scores.get)
'model_z'
```