4e25bd87fb
Don't call 'offset' on a dangling pointer
...
When creating a matrix with only one zero dimension, we end up with a
matrix with a total size of zero, but a non-zero stride for elements.
While such a matrix can never actually have any elements, we need to be
careful with how we use the pointer associated with it.
Since such a pointer will always be dangling, it can never be used with `ptr.offset`,
which requires that the pointer be in-bounds or one passed the end of an
allocation. Violating this results in undefined behavior.
This commit adds in checks before the uses of `ptr.offset`. If we ever
need to offset from a pointer when our actual allocation size is zero,
we skip offsetting, and return the original pointer. This is fine
because any actual use of the original or offsetted pointer would
already be undefined behavior - we shoul never be trying to dereference
the pointer associated with a zero-size matrix.
This issue was caught be running `cargo miri test` on the project.
2020-03-02 12:45:37 +01:00
e1c8e1bccf
Fix Vector::axpy for noncommutative cases
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One example would be performing simple matrix multiplication
over a division algebra such as quaternions.
2020-03-02 12:45:37 +01:00
8c4bb6f1cb
Import IsaacRng from rand_isaac instead of rand. ( #678 )
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Import IsaacRng from rand_isaac instead of rand.
2020-03-02 12:45:36 +01:00
50ad84e4b1
Update cholesky.rs
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corrected typo ni doc for `xx_rank_one_update`
2020-03-02 12:45:36 +01:00
d78309b1fd
Merge pull request #669 from daingun/patch-2
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Use same algorithm to solve 2x2 eigenvalue problem
2020-03-02 12:45:36 +01:00
8404839233
Import IsaacRng from rand_isaac instead of rand.
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The rand crate removed IsaacRng in the 0.5 -> 0.6 transition, so the benchmarks that use it haven't compiled since 9c37c51203
2020-03-02 12:45:36 +01:00
cd8fc9285f
Add some missing spaces.
2020-03-02 12:45:36 +01:00
a5b2a4ceb7
Merge pull request #1 from daingun/patch-1
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Correct Schur decomposition for 2x2 matrices
2020-03-02 12:45:36 +01:00
b96159aab3
Fix Cholesky for no-std platforms.
2020-03-02 12:45:36 +01:00
50417494ec
Use same algorithm to solve 2x2 eigenvalue problem
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The eigenvalue problem is solved in two different method that use different methods
to calculate the discriminant of the solution to the quadratic equation.
Use the method whose computation is considered more stable.
2020-03-02 12:45:36 +01:00
667c49d0e1
Correct Schur decomposition for 2x2 matrices
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Due to rounding and possible loss of precision the lower left element of the 2x2 matrix
may be different from zero.
2020-03-02 12:45:36 +01:00
59c6a98615
finished cleaning
2020-03-02 12:45:36 +01:00
3d08a80d8d
needs faster matrix initialization
2020-03-02 12:45:36 +01:00
f54faedc32
tests pass, needs cleanup
2020-03-02 12:45:36 +01:00
27a2045389
insert does compile
2020-03-02 12:45:36 +01:00
c613360a5c
insert does not compile yet
2020-03-02 12:45:36 +01:00
b29231cf7b
found uneeded storagemut
2020-03-02 12:45:36 +01:00
cfa7bbdc7c
remove column is now working
2020-03-02 12:45:36 +01:00
498c6ef60b
added template for remove_column
2020-03-02 12:45:36 +01:00
e583e37d1c
finally got the correct type for insert column
2020-03-02 12:45:36 +01:00
2f18aee212
added assertion
2020-03-02 12:45:36 +01:00
3d170e1684
removed useless if
2020-03-02 12:45:36 +01:00
b2a50404b6
code cleaned
2020-03-02 12:45:36 +01:00
516155025a
code cleaned
2020-03-02 12:45:36 +01:00
7347d467ae
rank update passed tests
2020-03-02 12:45:36 +01:00
96c16af66f
updated comment
2020-03-02 12:45:36 +01:00
16154f163a
added real constraint on sigma
2020-03-02 12:45:36 +01:00
45e6ac7c2a
test is now correct
2020-03-02 12:45:36 +01:00
5942a2a125
got test to compile
2020-03-02 12:45:36 +01:00
cc478c6c6d
added test for update
2020-03-02 12:45:36 +01:00
0c9451165d
first version of rank one update
2020-03-02 12:45:36 +01:00
2f77d73226
Generalize From<_> for MatrixSlice(Mut) to allow different strides
2020-03-02 12:45:35 +01:00
1103d49b80
Correct Schur decomposition for 2x2 matrices
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Due to rounding and possible loss of precision the lower left element of the 2x2 matrix
may be different from zero.
2020-03-02 12:45:35 +01:00
a05aa313da
Implement From<&Matrix> for MatrixSlice
2020-03-02 12:45:35 +01:00
6f1e924e40
used Storage trait for solve
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see issue 667
2020-03-02 12:45:35 +01:00
ffb69d5a6f
used Storage trait for solve method
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as per issue 667 https://github.com/rustsim/nalgebra/issues/667
2020-03-02 12:45:35 +01:00
456a5a84e7
Used Storage trait for solve method
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See issue 667 : https://github.com/rustsim/nalgebra/issues/667
2020-03-02 12:45:35 +01:00
549d0dd2dd
Release nalgebra 0.19.0.
2019-10-28 14:15:03 +01:00
0cc1bac816
Bump dependencies.
2019-10-28 14:15:03 +01:00
1b4c47fa0a
Create FUNDING.yml
2019-10-28 14:15:03 +01:00
37640838b1
Updated rand and quickcheck for nalgebra-lapack
2019-10-28 14:15:03 +01:00
d0d1172d4b
Rand 0.6 -> 0.7
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* Bumped rand version to 0.7
* Added dependency to rand_distr
* Bumped quickcheck version to 0.9 (because of rand)
* Bumped rand_xorshift version to 0.2
2019-10-28 14:15:03 +01:00
67f3379b34
Corrected typo.
2019-10-28 14:15:03 +01:00
7773f13016
Changed name. Changed argument. Added documentation line.
2019-10-28 14:15:03 +01:00
dacd15e927
Added function to compute the mean quaternion from a vector of unit quaternions.
2019-10-28 14:15:03 +01:00
b5f43c6efc
Switched fmt implementation to a macro, applied that macro to all formats in std
2019-10-28 14:15:03 +01:00
6ee0e02612
implemented LowerExp
2019-10-28 14:15:03 +01:00
fedf0fb4f5
Fixes #637 : removes not used parameter from cross
2019-10-28 14:15:03 +01:00
d35779d3f2
Release v0.18.2
2019-10-28 14:15:03 +01:00
be41cb96e8
GEMM on empty matrices: properly take the beta parameter into account.
2019-10-28 14:15:03 +01:00
Aaron Hill
Jakub Konka
Sébastien Crozet
Nestor Demeure
Avi Weinstock
daingun
Andreas Longva
Edoardo Morandi
thibault
Pierre Avital
Pierre Avital
alex