np.roots() not available yet?

[DecemberDream]

I need to find the roots of a few polynomials, however np.roots() doesn't seem to exist (yet). Could it be that I just can't find it or will it still be implemented?

[cross-hello]

If it is just focus on calculate answer, you could use a array or list or any other container, then use Math library to do it.
If above prerequisite don't stand, u could do the same way then convert it to NDarray. May use the code following:
var l=new List<doulbe>{3.2, 1.3, 4, 8};
What? That is a method named sqrt inhabit in np class in Numpy namespace. So what you mean np.roots in fact is another name for np.sqrt.

[DecemberDream]

Well, according to the NumPy documentation, np.sqrt returns the non-negative square-root of an array, element-wise while np.roots returns the roots of a polynomial.

An example is this:

import numpy as np

a = np.array([1, 2, -2, -4, 0])

np.sqrt(np.array([1,2,3,4,5,9,16]))
# returns array([1., 1.41421356, 1.73205081, 2., 2.23606798, 3., 4.])

np.sqrt(a)
# returns array([1., 1.41421356, nan, nan, 0. ])

np.roots(a)
# returns array([ 1.41421356, -2., -1.41421356, 0.])

[henon]

I just updated numpy to version 1.26, it now contains np.roots:

        [TestMethod]
        public void IssueByDecemberDream()
        {
            //a = np.array([1, 2, -2, -4, 0])
            //np.roots(a)
            //# returns array([ 1.41421356, -2., -1.41421356, 0.])            
            var a = np.array(new[] { 1, 2, -2, -4, 0 });
            var b = np.roots(a);
            Assert.AreEqual("array([ 1.41421356, -2.        , -1.41421356,  0.        ])", b.repr);
        }