---
title: "Magma V2.29-6 Patch Notes"
canonical: "https://docs.magma-maths.org/patchnotes/2.29-6.html"
source: "https://docs.magma-maths.org/patchnotes/2.29-6.md"
---

<a id="magma-v2-29-6-patch-notes"></a>
# Magma V2.29-6 Patch Notes

## Algebraic Modular forms

- Added input validation in [`UnitaryModularForms`](../ModularArithmeticGeometry/AlgebraicModularForms/creation.md#function-unitarymodularforms-algmatelt-grprep) to verify the lattice is even and integral. Reported by Steve Huang.
- Fixed bug in [`HeckeEigensystem`](../ModularArithmeticGeometry/AlgebraicModularForms/eigenforms.md#function-heckeeigensystem-modfrmalgelt-rngintelt) for algebraic unitary modular forms, stemming from a non-implemented Hecke operator when 2 is inert. This feature is still not implemented, but the intrinsic avoids attempting to compute this operator. Reported by Steve Huang.
- Added the option to call [`HeckeEigensystem`](../ModularArithmeticGeometry/AlgebraicModularForms/eigenforms.md#function-heckeeigensystem-modfrmalgelt-rngintelt) without specifying k, (defaulting to k = 1), while also specifying optional parameters, such as precision. This now matches the documentation. Reported by Steve Huang.

## Algebraic Surfaces

- Checking for singularity in [`MinimalModelRationalSurface`](../AlgebraicGeometry/AlgebraicSurfaces/gen-sfcs.md#function-srfc-mm-rat) has been increased. The parameter `CheckSing` now defaults to true. If a surface is known to be singular then an error occurs regardless of how the parameter is set. Reported by Adam Logan.

## Associative Algebras

- Error checking for `MaximalOrder` intrinsics has been improved. Reported by David Benson.

## Commutative Algebra

- An incorrect result when comparing two submodules of a module over an affine algebra been fixed. Reported by C. Quitte.
- A problem with the injection map in the construction of kernels of homomorphisms between modules over affine algebras has been fixed.

## Groebner Bases

- A crash in `ChangeOrder` for polynomial rings defined over unusual rings has been fixed. Reported by Claude Quitte.
- A bad slowdown and incorrect result for certain types of direct Groebner basis computations with non-graded monomial orders has been fixed. Reported by Markus Grassl.

## Integer Ring

- An obscure bug in the [`MPQS`](../BasicRings/Integers/factor.md#function-rngint-mpqs) function (for relatively small integers) has been fixed. Reported by Drew Sutherland.

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## Language/System

- An obscure crash when calling a function with zero arguments which expects one real argument has been fixed. Reported by Sachi Hashimoto.
- The tag [L] is now added to the machine type in the information printed at crashes. Issue noted by Markus Grassl.

## Lattices

- Fixed a bug in [`NumberOfNeighbors`](../LatticesQuadraticForms/LatticesOverNumberFields/numberfieldlattices.md#function-numberofneighbors-latnf-rngordidl-rngintelt) for hermitian lattices at inert primes. Reported by Steve Huang.

## Matrices

- Added an intrinsic `IsHermitian` to check if a matrix is Hermitian with respect to an involution on the base ring.

## Permutation Groups

- A crash in `AutomorphismGroup` for a certain type of group has been fixed. Reported by Eamonn O’Brien.