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Unexpected complex series expansion for asec(x) around x = 0

Status: Open.

#28963 In sympy/sympy;

· vishwas-droid opened on Jan 17, 2026

Provide config files that specify SymPy coding standards for contributors that use AI coding agents such as Claude Code.

Workflow

Status: Open.

#28961 In sympy/sympy;

· agryman opened on Jan 17, 2026

Reshaping explanation inside explanation for matrix derivatives?

Status: Open.

#28959 In sympy/sympy;

· Upabjojr opened on Jan 16, 2026

Docs build is broken

CI

Documentation

Status: Open.

#28954 In sympy/sympy;

· oscarbenjamin opened on Jan 16, 2026

tensor.TensExpr.replace_with_arrays() fails for specific order of indices

Status: Open.

#28949 In sympy/sympy;

· dcheng728 opened on Jan 15, 2026

[examples] An example of computing Riemann tensor using tensor module

Status: Open.

#28947 In sympy/sympy;

· dcheng728 opened on Jan 15, 2026

integrate(sqrt(a - x)/(x*sqrt(a + x)), x) returns unevaluated

integrals

Status: Open.

#28945 In sympy/sympy;

· hxdedage opened on Jan 15, 2026

<code>parse_latex_lark</code> cannot treat square brackets or curly parentheses

Status: Open.

#28943 In sympy/sympy;

· volatilerye opened on Jan 15, 2026

<code>TypeError: Invalid NaN comparison</code> when calling <code>sp.simplify</code>

Status: Open.

#28926 In sympy/sympy;

· dharmatech opened on Jan 11, 2026

Should ElementwiseApplyFunction simplify to function call if shape of arg is (1, 1) ?

matrices.expressions

Status: Open.

#28916 In sympy/sympy;

· Upabjojr opened on Jan 10, 2026

erf(sqrt(2)/2) + erfc(sqrt(2)/2)) should simplify to 1

Status: Open.

#28894 In sympy/sympy;

· dtlanghoff opened on Jan 6, 2026

Expectation of Binomial R.V.

stats

Status: Open.

#28892 In sympy/sympy;

· jungerm2 opened on Jan 5, 2026