creating a graph using python matplotlib from range(1,100000)-CodePudding

creating array using numpy from 1 to 100000 as value of x and y = x*x

x = np.arange(1,100000)
y = x*x

but when checked y value there are 31k negative value

count = 0
for i in y:
    if i < 0:
        count =1
print(count)

31612

CodePudding user response：

You are probably having integer overflow, try convert x to float before raising the power:

x = np.arange(1,100000)
y = x**10

sum(y < 0)
49760

Convert to float:

x = np.arange(1,100000).astype(float)
y = x**10

sum(y < 0)
0