From 1bc9d5c8c6b98a7269397a2c5ff9f2a1fed6733d Mon Sep 17 00:00:00 2001
From: Francesco Andreuzzi <andreuzzi.francesco@gmail.com>
Date: Wed, 16 Feb 2022 23:48:59 +0100
Subject: [PATCH 1/2] use 'np.polynomial.chebyshev.chebroots' instead of
 'np.roots'

---
 pina/chebyshev.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pina/chebyshev.py b/pina/chebyshev.py
index 6a9fa15..89cb1e6 100644
--- a/pina/chebyshev.py
+++ b/pina/chebyshev.py
@@ -1,6 +1,7 @@
-from mpmath import chebyt, chop, taylor
 import numpy as np
 def chebyshev_roots(n):
     """ Return the roots of *n* Chebyshev polynomials (between [-1, 1]) """
-    return np.roots(chop(taylor(lambda x: chebyt(n, x), 0, n))[::-1])
+    coefficents = np.zeros(n+1)
+    coefficents[-1] = 1
+    return np.polynomial.chebyshev.chebroots(coefficents)
 

From 66dfa79428ad0ce5ebd4b93f85dd186d79a52e8a Mon Sep 17 00:00:00 2001
From: Nicola Demo <demo.nicola@gmail.com>
Date: Thu, 17 Feb 2022 09:43:48 +0100
Subject: [PATCH 2/2] remove mpmath dep

---
 setup.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/setup.py b/setup.py
index e9370e6..be05c8f 100644
--- a/setup.py
+++ b/setup.py
@@ -14,8 +14,7 @@ VERSION = meta['__version__']
 KEYWORDS = 'physics-informed neural-network'
 
 REQUIRED = [
-    'future', 'numpy', 'matplotlib', 'torch', 'mpmath'
-    
+    'future', 'numpy', 'matplotlib', 'torch'  
 ]
 
 EXTRAS = {