I Keep getting this error, It's so simple and error is about (-x) in function but I don't know how I can fix it. Please help me.

This is my code:

import numpy as np
x = list(np.arange(0, 1, 0.1))
print (x)
def f(x): f = np.exp(-x) return f
y =f(x)
print (y)

4

2 Answers

Broadcasting isn't supported for vanilla Python lists. You should use list() after the operation involving broadcasting, like so:

import numpy as np
x = np.arange(0, 1, 0.1)
print(x)
def f(x): f = np.exp(-x) return f
y = list(f(x))
print(y)

1

First of all, please use different names

import numpy as np
x = list(np.arange(0, 1, 0.1))
print (x)
def func(param): retval = np.exp(-param) return retval
y = func(x)
print (y)

for start.

Then, you make a list from the np.arange, python lists don't support the unary operation - (minus) as you are using in the function (i.e. f = np.exp(-x))

numpy arrays on the other hand do support it. what you can do is not convert it to python list, or only convert it to a python list later in the process (after using the minus)

2

Your Answer

Sign up or log in

Sign up using Google Sign up using Facebook Sign up using Email and Password Submit

Post as a guest

Post Your Answer Discard

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.