MatrixCwiseUnaryOps.h File Reference

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Functions
EIGEN_STRONG_INLINE const CwiseUnaryOp < internal::scalar_abs_op < Scalar >, const Derived >	cwiseAbs () const
EIGEN_STRONG_INLINE const CwiseUnaryOp < internal::scalar_abs2_op < Scalar >, const Derived >	cwiseAbs2 () const
const CwiseUnaryOp < std::binder1st < std::equal_to< Scalar > >, const Derived >	cwiseEqual (const Scalar &s) const
const CwiseUnaryOp < internal::scalar_inverse_op < Scalar >, const Derived >	cwiseInverse () const
const CwiseUnaryOp < internal::scalar_sqrt_op < Scalar >, const Derived >	cwiseSqrt () const

---

Function Documentation

EIGEN_STRONG_INLINE const CwiseUnaryOp<internal::scalar_abs_op<Scalar>, const Derived> cwiseAbs

(

)

const

Returns:

an expression of the coefficient-wise absolute value of *this

Example:

MatrixXd m(2,3);
m << 2, -4, 6,   
     -5, 1, 0;
cout << m.cwiseAbs() << endl;

Output:

See also:

cwiseAbs2()

Definition at line 36 of file MatrixCwiseUnaryOps.h.

EIGEN_STRONG_INLINE const CwiseUnaryOp<internal::scalar_abs2_op<Scalar>, const Derived> cwiseAbs2

(

)

const

Returns:

an expression of the coefficient-wise squared absolute value of *this

Example:

MatrixXd m(2,3);
m << 2, -4, 6,   
     -5, 1, 0;
cout << m.cwiseAbs2() << endl;

Output:

See also:

cwiseAbs()

Definition at line 46 of file MatrixCwiseUnaryOps.h.

const CwiseUnaryOp<std::binder1st<std::equal_to<Scalar> >, const Derived> cwiseEqual

(

const Scalar &

s

)

const [inline]

Returns:

an expression of the coefficient-wise == operator of *this and a scalar s

Warning:

this performs an exact comparison, which is generally a bad idea with floating-point types. In order to check for equality between two vectors or matrices with floating-point coefficients, it is generally a far better idea to use a fuzzy comparison as provided by isApprox() and isMuchSmallerThan().

See also:

cwiseEqual(const MatrixBase<OtherDerived> &) const

Definition at line 78 of file MatrixCwiseUnaryOps.h.

const CwiseUnaryOp<internal::scalar_inverse_op<Scalar>, const Derived> cwiseInverse

(

)

const [inline]

Returns:

an expression of the coefficient-wise inverse of *this.

Example:

MatrixXd m(2,3);
m << 2, 0.5, 1,   
     3, 0.25, 1;
cout << m.cwiseInverse() << endl;

Output:

See also:

cwiseProduct()

Definition at line 66 of file MatrixCwiseUnaryOps.h.

const CwiseUnaryOp<internal::scalar_sqrt_op<Scalar>, const Derived> cwiseSqrt

(

)

const [inline]

Returns:

an expression of the coefficient-wise square root of *this.

Example:

Vector3d v(1,2,4);
cout << v.cwiseSqrt() << endl;

Output:

See also:

cwisePow(), cwiseSquare()

Definition at line 56 of file MatrixCwiseUnaryOps.h.