Source file owl_base_linalg_generic.ml
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# 1 "src/base/linalg/owl_base_linalg_generic.ml"
type ('a, 'b) t = ('a, 'b) Owl_base_dense_ndarray_generic.t
module M = Owl_base_dense_ndarray_generic
let is_triu x =
let shp = M.shape x in
let m, n = shp.(0), shp.(1) in
let k = Pervasives.min m n in
let _a0 = Owl_const.zero (M.kind x) in
try
for i = 0 to k - 1 do
for j = 0 to i - 1 do
assert (M.get x [|i; j|] = _a0)
done
done;
true
with _exn -> false
let is_tril x =
let shp = M.shape x in
let m, n = shp.(0), shp.(1) in
let k = Pervasives.min m n in
let _a0 = Owl_const.zero (M.kind x) in
try
for i = 0 to k - 1 do
for j = i + 1 to k - 1 do
assert (M.get x [|i; j|] = _a0)
done
done;
true
with _exn -> false
let is_symmetric x =
let shp = M.shape x in
let m, n = shp.(0), shp.(1) in
if m <> n then false
else (
try
for i = 0 to n - 1 do
for j = i + 1 to n - 1 do
let a = M.get x [|j; i|] in
let b = M.get x [|i; j|] in
assert (a = b)
done
done;
true
with _exn -> false
)
let is_hermitian x =
let shp = M.shape x in
let m, n = shp.(0), shp.(1) in
if m <> n then false
else (
try
for i = 0 to n - 1 do
for j = i to n - 1 do
let a = M.get x [|j; i|] in
let b = Complex.conj (M.get x [|i; j|]) in
assert (a = b)
done
done;
true
with _exn -> false
)
let is_diag x = is_triu x && is_tril x