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Poly(E**100000000) is slow to create #19670

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sachin-4099 opened this issue Jun 29, 2020 · 1 comment

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sachin-4099 commented Jun 29, 2020 •

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On master:

In [1]: %time Poly(E**100000000)
Wall time: 22 s

Out[1]: Poly(E**100000000, E, domain='ZZ')

In [1]: %time Poly(E**1000000000)
Takes too much time

Therefore, Poly(E**100000000) is slow to create.

The text was updated successfully, but these errors were encountered:

sachin-4099 added polys simplify labels

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jksuom commented Jun 29, 2020

That essentially creates a list of length 100000000, and that alone takes much time.

In [19]: %time l = [0]*100000000
CPU times: user 1.43 s, sys: 472 ms, total: 1.9 s
Wall time: 10.5 s

skirpichev added a commit to skirpichev/diofant that referenced this issue


          Mention fixed issue

19b1c5b

Closes sympy/sympy#19670

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