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[WIP] Added support for addressing more exp cases by anutosh491 · Pull Request #2685 · lcompilers/lpython · GitHub

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[WIP] Added support for addressing more exp cases #2685

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[WIP] Added support for addressing more exp cases #2685

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32 changes: 30 additions & 2 deletions integration_tests/test_gruntz.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
from lpython import S
from sympy import Symbol, log, E, Pow, exp
from sympy import Symbol, log, E, Pow, exp, oo

def mmrv(e: S, x: S) -> list[S]:
empty_list : list[S] = []
Expand Down Expand Up @@ -36,11 +36,39 @@ def mmrv(e: S, x: S) -> list[S]:
if exponent.func == log:
list4: list[S] = mmrv(exponent.args[0], x)
return list4
# TODO
li: S = limitinf(exponent, x)
if is_infinite(li):
# TODO
pass
else:
list5: list[S] = mmrv(exponent, x)
return list5
pass
else:
raise

def is_infinite(e: S) -> bool:
if e == oo:
return True
if e == S(-1) * oo:
return True
return False

def limitinf(e: S, x: S) -> S:
if e == x:
return oo
elif e == S(-1) * x:
return S(-1) * oo
elif e.func == Pow:
exponent: S = e.args[1]
# assuming all exponents are integers to start with
if exponent > S(0):
return oo
else:
return S(0)
else:
raise Exception("Not implemented yet.")

def test_mrv():
# Case 1
x: S = Symbol("x")
Expand Down
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