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2023-06-05 18:53:23 +0200	received badge	● Notable Question (source)
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2021-02-03 11:07:45 +0200	commented question	Undefined symbol st_new Yes, I am. Apparently the problem has been solved https://bugs.archlinux.org/index.php?... I still didn't have the chance to test though.
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2021-02-01 11:24:49 +0200	asked a question	Undefined symbol st_new I have globally installed sagemath and I'm experiencing an undefined symbol problem. Each time I try to do `from sage.all import *` I get this error `ImportError: /usr/lib/python3.9/site-packages/sage/libs/lrcalc/lrcalc.cpython-39-x86_64-linux-gnu.so: undefined symbol: st_new` How can I fix the problem? EDIT: This is the crash report I get when trying to launch `sage` from terminal. link text
2021-01-28 08:59:45 +0200	commented answer	Simplify symbolic product Thanks for your reply. Indeed, the function is quite faster. I wonder why, during variable substitutions, it doesn't apply this procedure.
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2021-01-27 16:22:23 +0200	asked a question	Simplify symbolic product As per the title, I want to simplify this product somehow. `var('i,r') exp = product(1-2**(-i), i, 1, r)` This can be also expressed as `q_pochhammer(r, 2, 2)` However, the latest expression does not accept the symbolic variable `r`, but only a real integer. The main problem is that the actual computation (f.e. `exp.unhold().subs({r: 12345})` takes a huge amount of time. Is there any way to simplify this product in sage or accelerate this computation somehow? I've already tried all the simplify/expand methods, but also the `combsimp` method of `sympy`. As a side question, is there any way to use the `q_pochhammer` function symbolically? Maybe I can use the hypergeometric simplifications on it.