write a numpy program to convert a list of numeric value into a one-dimensional numpy array then create a 3x3 matrix

Sure, here's the code:

import numpy as np

# create a list of numeric values
values = [1, 2, 3, 4, 5, 6, 7, 8, 9]

# convert the list to a one-dimensional numpy array
arr = np.array(values)

# create a 3x3 matrix from the array
matrix = arr.reshape(3, 3)

print(matrix)

Output:

[[1 2 3]
 [4 5 6]
 [7 8 9]]

Explanation:

First, we import the `numpy` library. Then, we create a list of numeric values called `values`.

Next, we convert the `values` list to a one-dimensional numpy array using the `np.array()` function and assign it to the variable `arr`.

Finally, we create a 3x3 matrix from the `arr` array using the `reshape()` method and assign it to the variable `matrix`. We then print the `matrix` variable to see the output.