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added test files for the Cholesky decomposition

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Zoltán Vörös 2020-03-11 07:04:26 +01:00
parent 037cd6e733
commit c354657eda
2 changed files with 27 additions and 0 deletions
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17
tests/cholesky.py Normal file
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import ulab
from ulab import linalg
a = ulab.array([[1, 2], [2, 5]])
print(linalg.cholesky(a))
b = a = ulab.array([[25, 15, -5], [15, 18, 0], [-5, 0, 11]])
print(linalg.cholesky(b))
c = ulab.array([[18, 22, 54, 42], [22, 70, 86, 62], [54, 86, 174, 134], [42, 62, 134, 106]])
print(linalg.cholesky(c))
# this throw a ValueError exception
d = ulab.array([[25, 15, -5], [15, 18, 0], [-5, 0, 1]])

10
tests/cholesky.py.exp Normal file
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array([[1.0, 0.0],
[2.0, 1.0]], dtype=float)
array([[5.0, 0.0, 0.0],
[3.0, 3.0, 0.0],
[-1.0, 1.0, 3.0]], dtype=float)
array([[4.242640687119285, 0.0, 0.0, 0.0],
[5.185449728701349, 6.565905201197403, 0.0, 0.0],
[12.72792206135786, 3.046038495400855, 1.649742247909068, 0.0],
[9.899494936611665, 1.624553864213789, 1.849711005231386, 1.392621247645583]], dtype=float)
# how do we handle exceptions?