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Rowan Cockett
b0760f577f
NOTE: if you add a new function (or file), you must register it in __init__.py for it to be available under: e.g. ... from utils import mkvc, … ... from MYNEWFILE import MYNEWFUNCTION
23 lines
433 B
Python
23 lines
433 B
Python
from scipy import sparse as sp
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from utils import mkvc
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def sdiag(h):
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"""Sparse diagonal matrix"""
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return sp.spdiags(mkvc(h), 0, h.size, h.size, format="csr")
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def speye(n):
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"""Sparse identity"""
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return sp.identity(n, format="csr")
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def kron3(A, B, C):
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"""Three kron prods"""
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return sp.kron(sp.kron(A, B), C, format="csr")
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def spzeros(n1, n2):
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"""spzeros"""
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return sp.coo_matrix((n1, n2)).tocsr()
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