Issues

• feat: combinations() overhaul

  josdejong/mathjs#3795 · Filter by author gwhitney opened on Nov 11, 2026

• slu: csSpsolve calls the generic multiply and subtract per nonzero, making it 2.5 to 9 times slower for number matrices

  category:numerical
  josdejong/mathjs#3792 · Filter by author nikoscham opened on Nov 11, 2026
  1

• mod can return a negative remainder for a positive divisor, or lose the remainder entirely, when both arguments are integers.

  josdejong/mathjs#3787 · Filter by author Dx-Alz-xD opened on Nov 10, 2026
  3

• combinationsWithRep returns spurious fraction digits for exactly-representable results (combinationsWithRep(33, 12) → 21090682613.000004)

  josdejong/mathjs#3782 · Filter by author rahul05ranjan opened on Nov 9, 2026

• catalan(n) is off by one for exactly-representable results (catalan(30) → 3814986502092305, true 3814986502092304)

  josdejong/mathjs#3780 · Filter by author rahul05ranjan opened on Nov 9, 2026

• std and variance in the expression parser use a zero-based dimension when a normalization is given

  josdejong/mathjs#3779 · Filter by author jayhemnani9910 opened on Nov 9, 2026

• gamma and factorial return Infinity for a NaN BigNumber

  bug
  josdejong/mathjs#3777 · Filter by author yxshee opened on Nov 9, 2026
  1

• maintenance: mathjs-internal Unit type redundantly stores derived unit information

  josdejong/mathjs#3774 · Filter by author gwhitney opened on Nov 8, 2026

• Simplify makes an arbitrary choice on a-b-c-d

  josdejong/mathjs#3769 · Filter by author gwhitney opened on Nov 8, 2026

• zeta(s) is inaccurate for real s between -9.5 and about -3

  bugcategory:numerical
  josdejong/mathjs#3766 · Filter by author trackoor opened on Nov 7, 2026
  2

• combinations(n, k) returns Infinity or NaN for finite results from about 1e83

  josdejong/mathjs#3765 · Filter by author trackoor opened on Nov 7, 2026
  3

• simplify does not terminate on 2/x^2 - x^(2*z)

  josdejong/mathjs#3764 · Filter by author belomaxorka opened on Nov 7, 2026
  1

• Simplify leaves -(5*x)

  category:symbolicdesign decisionquestion
  josdejong/mathjs#3763 · Filter by author gwhitney opened on Nov 6, 2026
  2

• usolve reference example uses a non-upper-triangular matrix and returns a non-solution

  josdejong/mathjs#3759 · Filter by author Hugohong258 opened on Nov 4, 2026

• GET API returns plain-text calculation results with text/html Content-Type

  josdejong/mathjs#3755 · Filter by author glipitch opened on Nov 3, 2026

• coth, csch, acoth, acsch and asech overflow or lose precision for number inputs

  bugcategory:numericalNeeds more information
  josdejong/mathjs#3754 · Filter by author snooze26h opened on Nov 3, 2026
  1

• Logical operators should return the truthy/falsy value that triggered their return [breaking]

  josdejong/mathjs#3746 · Filter by author gwhitney opened on Nov 2, 2026
  1

• feat: Allow (some) arithmetic on functions

  design decisionfeature
  josdejong/mathjs#3742 · Filter by author gwhitney opened on Oct 31, 2026

• format with notation: 'engineering' returns 0e<exp> for BigNumbers bigger than 10^324

  josdejong/mathjs#3729 · Filter by author PhantomusBiscuit opened on Oct 25, 2026

• misbehavior of certain transformed functions

  bugcategory:expressions
  josdejong/mathjs#3726 · Filter by author gwhitney opened on Oct 23, 2026

• Bound variables inconsistently affect scope

  bugcategory:expressionsdesign decision
  josdejong/mathjs#3723 · Filter by author gwhitney opened on Oct 17, 2026
  1

• Expression parser unnecessary assignment

  josdejong/mathjs#3707 · Filter by author ACodingSeal opened on Oct 1, 2026

• Infinite loop when simplifying

  josdejong/mathjs#3693 · Filter by author khanybaba opened on Sep 8, 2026

• simplifying linear expressions

  josdejong/mathjs#3692 · Filter by author khanybaba opened on Sep 3, 2026

• are trigonometric function broken ?

  josdejong/mathjs#3676 · Filter by author nycos62 opened on Jul 1, 2026
  2