Search results

lccdf of beta overflows at reasonably normal values

Status: Open.

#3377 In stan-dev/math;

· aakhmetz opened on Aug 28, 2026

Incorrect derivative in bernoulli_logit distributions for some branches

distributionsIssues that deal with distribution functions: pdf, pmf, cdfIssues that deal with distribution functions: pdf, pmf, cdf

good first issue

numericsNumerical issuesNumerical issues

testing

Status: Open.

#3374 In stan-dev/math;

· WardBrian opened on Aug 24, 2026

Add doubly stochastic matrix constraint

feature

Status: Open.

#3372 In stan-dev/math;

· WardBrian opened on Aug 24, 2026

add functionality to interpolate in look-up tables

feature

new function

Status: Open.

#3365 In stan-dev/math;

· bmelinden opened on Aug 21, 2026

Derive log CDF and log CCDF of transformed distributions from std_log_lcdf

Status: Open.

#3364 In stan-dev/math;

· jaburgoyne opened on Aug 21, 2026

Add ITP one dimensional solver

feature

good first issue

new function

Status: Open.

Feature

#3362 In stan-dev/math;

· spinkney opened on Aug 21, 2026

Feature request: row_centred_matrix and column_centred_matrix

feature

good first issue

Status: Open.

#3361 In stan-dev/math;

· jaburgoyne opened on Aug 18, 2026

add is_even and is_odd here and to Stan

good first issue

Status: Open.

#3349 In stan-dev/math;

· bob-carpenter opened on Jul 20, 2026

Scans and reduction functions

feature

new function

Status: Open.

#3340 In stan-dev/math;

· WardBrian opened on Jun 30, 2026

wiener_lpdf full model returns -inf for valid-support inputs in variability branches

Status: Open.

#3329 In stan-dev/math;

· martonaronvarga opened on Jun 4, 2026

wiener_lpdf reverse-mode derivative wrt w disagrees with finite differences of Stan Math value

Status: Open.

#3322 In stan-dev/math;

· martonaronvarga opened on May 12, 2026

Redundant function multiply_log vs. lmultiply

Status: Open.

#3318 In stan-dev/math;

· jachymb opened on May 10, 2026