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# include <cppad/speed/det_33.hpp>
ok = det_33(x, d)
det_33 is defined in the CppAD
namespace by including
the file cppad/speed/det_33.hpp
(relative to the CppAD distribution directory).
It is only intended for example and testing purposes,
so it is not automatically included by
cppad.hpp
.
const Vector &x
.
It contains the elements of the matrix
X
in row major order; i.e.,
\[
X_{i,j} = x [ i * 3 + j ]
\]
const Vector &d
.
It is tested to see if d[0] it is equal to
\det ( X )
.
y[i]
where i has type size_t with value less than 9.
This must return a double value corresponding to the i-th
element of the vector y.
This is the only requirement of the type Vector.
(Note that only the first element of the vector d is used.)
bool ok
It is true, if the determinant d[0]
passes the test and false otherwise.