rocky's observations

Author: mmatera

mathics/builtin/layout.py

@@ -16,13 +16,7 @@
 from mathics.builtin.makeboxes import MakeBoxes
 from mathics.builtin.options import options_to_rules
 from mathics.core.atoms import Real, String
-from mathics.core.builtin import (
-    BinaryOperator,
-    Builtin,
-    Operator,
-    PostfixOperator,
-    PrefixOperator,
-)
+from mathics.core.builtin import Builtin, Operator, PostfixOperator, PrefixOperator
 from mathics.core.expression import Evaluation, Expression
 from mathics.core.list import ListExpression
 from mathics.core.symbols import Symbol

mathics/builtin/recurrence.py

@@ -49,7 +49,7 @@ class RSolve(Builtin):
     ## PyPy:    {{a -> Function[{n}, 1 - C[1] + C[1] -1 ^ n]}}
     ## CPython: {{a -> Function[{n}, 1 + C[1] -1 ^ n - C[1]]}
 
-    Geta "pure function" solution for a with two boundary conditions:
+    Get a "pure function" solution for a with two boundary conditions:
     >> RSolve[{a[n + 2] == a[n], a[0] == 1, a[1] == 4}, a, n]
      = {{a -> Function[{n}, 5 / 2 - 3 (-1) ^ n / 2]}}
     """

mathics/eval/makeboxes.py

@@ -74,8 +74,8 @@ def compare_precedence(
 ) -> Optional[int]:
     """
     compare the precedence of the element regarding a precedence value.
-    If both precedences are equivalent, return 0. If precedence of element
-    is higher, return 1, otherwise -1.
+    If both precedences are equal, return 0. If precedence of the
+    first element is higher, return 1, otherwise -1.
     If precedences cannot be compared, return None.
     """
     while element.has_form("HoldForm", 1):

test/builtin/numbers/test_diffeqns.py

@@ -66,7 +66,7 @@
             "DSolve[f[x] == 0, f, {}]",
             None,
         ),
-        ## Order of arguments shoudn't matter
+        # # Order of arguments shoudn't matter
         (
             "DSolve[D[f[x, y], x] == D[f[x, y], y], f, {x, y}]",
             None,