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Taddeüs Kroes
trs
Commits
e463573b
Commit
e463573b
authored
Jun 04, 2012
by
Sander Mathijs van Veen
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Remove match_multiply_zero in favor of match_multiply_numerics.
parent
5a7ecfed
Changes
2
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2 changed files
with
3 additions
and
23 deletions
+3
-23
src/rules/__init__.py
src/rules/__init__.py
+3
-4
src/rules/numerics.py
src/rules/numerics.py
+0
-19
No files found.
src/rules/__init__.py
View file @
e463573b
...
@@ -8,7 +8,7 @@ from .powers import match_add_exponents, match_subtract_exponents, \
...
@@ -8,7 +8,7 @@ from .powers import match_add_exponents, match_subtract_exponents, \
match_raised_fraction
,
match_remove_negative_exponent
,
\
match_raised_fraction
,
match_remove_negative_exponent
,
\
match_exponent_to_root
,
match_extend_exponent
,
match_constant_exponent
match_exponent_to_root
,
match_extend_exponent
,
match_constant_exponent
from
.numerics
import
match_add_numerics
,
match_divide_numerics
,
\
from
.numerics
import
match_add_numerics
,
match_divide_numerics
,
\
match_multiply_numerics
,
match_
multiply_zero
,
match_
raise_numerics
match_multiply_numerics
,
match_raise_numerics
from
.fractions
import
match_constant_division
,
match_add_fractions
,
\
from
.fractions
import
match_constant_division
,
match_add_fractions
,
\
match_multiply_fractions
,
match_divide_fractions
,
\
match_multiply_fractions
,
match_divide_fractions
,
\
match_extract_fraction_terms
,
match_division_in_denominator
match_extract_fraction_terms
,
match_division_in_denominator
...
@@ -38,9 +38,8 @@ RULES = {
...
@@ -38,9 +38,8 @@ RULES = {
match_combine_groups
,
match_add_quadrants
,
match_combine_groups
,
match_add_quadrants
,
match_add_logarithms
,
match_sort_polynome
],
match_add_logarithms
,
match_sort_polynome
],
OP_MUL
:
[
match_multiply_numerics
,
match_expand
,
match_add_exponents
,
OP_MUL
:
[
match_multiply_numerics
,
match_expand
,
match_add_exponents
,
match_multiply_zero
,
match_negated_factor
,
match_negated_factor
,
match_multiply_fractions
,
match_multiply_fractions
,
match_factor_in_multiplicant
,
match_factor_in_multiplicant
,
match_sort_monomial
],
match_sort_monomial
],
OP_DIV
:
[
match_subtract_exponents
,
match_divide_numerics
,
OP_DIV
:
[
match_subtract_exponents
,
match_divide_numerics
,
match_constant_division
,
match_divide_fractions
,
match_constant_division
,
match_divide_fractions
,
match_negated_division
,
match_extract_fraction_terms
,
match_negated_division
,
match_extract_fraction_terms
,
...
...
src/rules/numerics.py
View file @
e463573b
...
@@ -165,25 +165,6 @@ MESSAGES[reduce_fraction_constants] = \
...
@@ -165,25 +165,6 @@ MESSAGES[reduce_fraction_constants] = \
_
(
'Divide the nominator and denominator of fraction {0} by {1}.'
)
_
(
'Divide the nominator and denominator of fraction {0} by {1}.'
)
def
match_multiply_zero
(
node
):
"""
a * 0 -> 0
0 * a -> 0
-0 * a -> -0
0 * -a -> -0
-0 * -a -> 0
"""
assert
node
.
is_op
(
OP_MUL
)
left
,
right
=
node
if
(
left
.
is_leaf
and
left
.
value
==
0
)
\
or
(
right
.
is_leaf
and
right
.
value
==
0
):
return
[
P
(
node
,
multiply_zero
,
(
left
.
negated
+
right
.
negated
,))]
return
[]
def
match_multiply_numerics
(
node
):
def
match_multiply_numerics
(
node
):
"""
"""
3 * 2 -> 6
3 * 2 -> 6
...
...
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