def vdot(a, b):
"""Returns the dot product of 2 vectors (or anything that can be made into
a vector). NB: this is not the same as `dot`, as it takes the conjugate
of its first argument if complex and always returns a scalar."""
try:
return _dotblas.vdot(Numeric.ravel(a), Numeric.ravel(b))
# in case we get an integer Value
except TypeError:
return multiarray.matrixproduct(multiarray.array(a).flat,
multiarray.array(b).flat)
def dot(a, b):
"""dot(a,b) returns matrix-multiplication between a and b. The product-sum
is over the last dimension of a and the second-to-last dimension of b.
"""
try:
return multiarray.matrixproduct(a, b)
except TypeError, detail:
if array(a).shape == () or array(b).shape == ():
return a * b
else:
raise TypeError, detail or "invalid types for dot"
def dot(a, b):
"""dot(a,b) returns matrix-multiplication between a and b. The product-sum
is over the last dimension of a and the second-to-last dimension of b.
"""
try:
return multiarray.matrixproduct(a, b)
except TypeError,detail:
if array(a).shape == () or array(b).shape == ():
return a*b
else:
raise TypeError, detail or "invalid types for dot"
def dot(a, b):
"""returns matrix-multiplication between a and b.
The product-sum is over the last dimension of a and the
second-to-last dimension of b.
NB: No conjugation of complex arguments is performed.
This version uses the BLAS optimized routines where possible.
"""
try:
return _dotblas.matrixproduct(a, b)
except:
try:
return multiarray.matrixproduct(a, b)
except TypeError,detail:
if multiarray.array(a).shape == () or multiarray.array(b).shape == ():
return a*b
else:
raise TypeError, detail or "invalid types for matrixproduct"
def vdot(a, b):
"""Returns the dot product of 2 vectors (or anything that can be made into
a vector). NB: this is not the same as `dot`, as it takes the conjugate
of its first argument if complex and always returns a scalar."""
return multiarray.matrixproduct(conjugate(ravel(a)), ravel(b))
"""Numeric module defining a multi-dimensional array and useful procedures for
def vdot(a, b):
"""Returns the dot product of 2 vectors (or anything that can be made into
a vector). NB: this is not the same as `dot`, as it takes the conjugate
of its first argument if complex and always returns a scalar."""
return multiarray.matrixproduct(conjugate(ravel(a)),
ravel(b))
"""Numeric module defining a multi-dimensional array and useful procedures for
