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Macaulay2
The primary source code repository for Macaulay2, a system for computing in commutative algebra, algebraic geometry and related fields.
Here's a wildly undefined behavior: ```m2 i1 : S = set {0,1,2}; i2 : delete(0, S) o2 = set {0, 1, 2} -- maybe delete just doesn't work for Set?...
The gh-pages branch added after #2553 has added more than 200MB to the size of the repository, and every week nearly every file in the branch is updated, so I...
A cool feature of more developed languages like Julia or Python is that they have [iterator generators](https://www.python.org/dev/peps/pep-0255/). It would be a very cool feature if M2 supported something like the...
Another easy computation that does not work over the integers: ```m2 R = ZZ[e_1, e_2, e_3, Degrees =>{1,2,3}] I = ideal(2, e_1*e_2 - e_3) isPrime I -- error: no applicable...
Here is a computation that is does not work correctly over integers: ```m2 T = ZZ[f_1, f_2, f_3, Degrees =>{1,2,3}] F = T^{0, -1, -2, -1, -2, -3} G =...
Here's a simple computation that does not currently work: ```m2 S = ZZ[x_1,x_2,x_3] R = ZZ[e_1, e_2, e_3, Degrees =>{1,2,3}] f = map(S, R, {x_1 + x_2 + x_3, x_1*x_2...
Here's something that might be nice for combinatorialists working with permutations: ```m2 i1 : w = {2,0,1} o1 = {2, 0, 1} o1 : List i2 : w^2 -- essentially...
I've noticed that the amd64 PPA build for Ubuntu 22.10 (the current development release -- not to be officially released until October) has been segfaulting for the last week or...
Recently there are many new warnings like this: ```cpp [228/331] Building CXX object Macaulay2/e/CMakeFiles/M2-engine.dir/gb-test1.cpp.o /home/mahrud/Projects/M2/M2/M2/Macaulay2/e/gb-test1.cpp:573:19: warning: ‘template struct std::binary_function’ is deprecated [-Wdeprecated-declarations] 573 | : public std::binary_function | ^~~~~~~~~~~~~~~ In...