Only size-1 arrays can be converted to Python scalars

problem

only size-1 arrays can be converted to Python scalars

This comes out and the graph doesn't work well! !!

This is the source code of the problem

import matplotlib.pyplot as plt
import math
import np
x = np.linspace(0,1, 10000);
def y(a):
    return math.exp(a)
plt.figure(0)
plt.plot(x, y(x))
plt.show()

Cause

math functions can't handle matrices

Solved by using exp with numpy function

plt.plot(x, y(x))

Be careful because I'm throwing a line in this part

Therefore

def y(a):
    return np.exp(a)

If so, heal

Code after resolution

import matplotlib.pyplot as plt
import math
import numpy
x = np.linspace(0,1, 10000);
def y(a):
    return np.exp(a)
plt.figure(0)
plt.plot(x, y(x))
plt.show()

reference: https://blog.csdn.net/u013634684/article/details/49305655?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-2.nonecase&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-2.nonecase