计算Python中输入值的平方根

要计算输入值的平方根，在Python Numpy中使用scimath.sqrt()方法。该方法返回x的平方根。如果x是标量，则输出也是标量，否则返回一个数组。参数x是输入值。对于负的输入元素，返回一个复数值。

步骤

首先，导入所需的库−

import numpy as np

使用array()方法创建一个numpy数组−

arr = np.array([1, 4, 9, 16, 25, 36])

显示数组 –

print("Our Array...\n",arr)

检查尺寸 –

print("\nDimensions of our Array...\n",arr.ndim)

获取数据类型 –

print("\nDatatype of our Array object...\n",arr.dtype)

获取形状 −

print("\nShape of our Array object...\n",arr.shape)

使用Python Numpy中的scimath.sqrt()方法计算输入的平方根。该方法返回x的平方根。如果x是标量，输出也是标量；如果x是数组，将返回一个数组-

print("\nResult...\n",np.emath.sqrt(arr))

示例

import numpy as np

# Creating a numpy array using the array() method
arr = np.array([1, 4, 9, 16, 25, 36])

# Display the array
print("Our Array...\n",arr)

# Check the Dimensions
print("\nDimensions of our Array...\n",arr.ndim)

# Get the Datatype
print("\nDatatype of our Array object...\n",arr.dtype)

# Get the Shape
print("\nShape of our Array object...\n",arr.shape)

# To compute the square root of input, use the scimath.sqrt() method in Python Numpy
# The method returns the square root of x. If x was a scalar, so is out, otherwise an array is returned.
print("\nResult...\n",np.emath.sqrt(arr))

输出

Our Array...
[ 1 4 9 16 25 36]

Dimensions of our Array...
1

Datatype of our Array object...
int64

Shape of our Array object...
(6,)

Result...
[1. 2. 3. 4. 5. 6.]