Feyncalc fixes

CHANGES.rst

@@ -9,6 +9,7 @@ New variables and builtins
 ++++++++++++++++++++++++++
 
 * ``Arg``
+* ``CoefficientArrays`` and ``Collect`` (#1174, #1194)
 * ``Dispatch``
 * ``FullSimplify``
 * ``LetterNumber`` #1298. The ``alphabet`` parameter supports only a minimal number of languages.
@@ -29,6 +30,8 @@ Enhancements
 * ``Attributes`` accepts a string parameter.
 * ``ColorNegate`` for colors is supported.
 * ``D`` and ``Derivative`` improvements.
+* ``Expand`` and ``ExpandAll`` now support a second parameter ``patt`` (#1301)
+* ``Expand`` and ``ExpandAll`` works with hyperbolic functions (`Sinh`, `Cosh`, `Tanh`, `Coth`)
 * ``FileNames`` returns a sorted list (#1250).
 * ``FindRoot`` now receives several optional parameters like ``Method`` and ``MaxIterations``.
 * ``FixedPoint`` now supports the ``SameTest`` option.
@@ -39,11 +42,10 @@ Enhancements
 * ``StringTake`` now accepts form containing a list of strings and specification (#1297).
 * ``Table`` [*expr*, *n*] is supported.
 * ``ToString`` accepts an optional *form* parameter.
-* ``ToExpression`` handles multi-line string input
+* ``ToExpression`` handles multi-line string input.
 * The implementation of Streams was redone.
 
 
-
 Bug fixes
 +++++++++
 

mathics/builtin/arithmetic.py

@@ -8,6 +8,7 @@
 """
 
 from mathics.version import __version__  # noqa used in loading to check consistency.
+
 import sympy
 import mpmath
 from functools import lru_cache

mathics/builtin/base.py

@@ -721,11 +721,17 @@ def boxes_to_tex(self, leaves, **options) -> str:
 class PatternError(Exception):
     def __init__(self, name, tag, *args):
         super().__init__()
+        self.name = name
+        self.tag = tag
+        self.args = args
 
 
 class PatternArgumentError(PatternError):
     def __init__(self, name, count, expected):
         super().__init__(None, None)
+        self.name = name
+        self.count = count
+        self.expected = expected
 
 
 class PatternObject(InstanceableBuiltin, Pattern):