meshlib.mrmeshpy.SymMatrix2d Class Reference

Public Member Functions
SymMatrix2d	__iadd__ (self, SymMatrix2d b)
SymMatrix2d	__imatmul__ (self, float b)
None	__init__ (self)
None	__init__ (self, SymMatrix2d arg0)
SymMatrix2d	__isub__ (self, SymMatrix2d b)
SymMatrix2d	__itruediv__ (self, float b)
float	det (self)
Vector2d	eigens (self, Matrix2d eigenvectors=None)
Vector2d	eigenvector (self, float eigenvalue)
SymMatrix2d	inverse (self)
SymMatrix2d	inverse (self, float det)
Vector2d	maxEigenvector (self)
float	normSq (self)
SymMatrix2d	pseudoinverse (self, float tol=2.220446049250313e-16, int_output rank=None, Vector2d space=None)
float	trace (self)
float	xx (self)
None	xx (self, float arg1)
float	xy (self)
None	xy (self, float arg1)
float	yy (self)
None	yy (self, float arg1)

Static Public Member Functions
SymMatrix2d	diagonal (float diagVal)
SymMatrix2d	identity ()

Detailed Description

Generated from:  MR::SymMatrix2d
Aliases:  SymMatrix2_double, Vector2_double_SymMatrixType, QuadraticForm_Vector2d_SM, SymMatrix2_double

symmetric 2x2 matrix
\\ingroup MatrixGroup

Constructor & Destructor Documentation

__init__() [1/2]

None meshlib.mrmeshpy.SymMatrix2d.__init__

(

self

)

__init__() [2/2]

None meshlib.mrmeshpy.SymMatrix2d.__init__	(		self,
		SymMatrix2d	arg0 )

Implicit copy constructor.

Member Function Documentation

__iadd__()

SymMatrix2d meshlib.mrmeshpy.SymMatrix2d.__iadd__	(		self,
		SymMatrix2d	b )

__imatmul__()

SymMatrix2d meshlib.mrmeshpy.SymMatrix2d.__imatmul__	(		self,
		float	b )

__isub__()

SymMatrix2d meshlib.mrmeshpy.SymMatrix2d.__isub__	(		self,
		SymMatrix2d	b )

__itruediv__()

SymMatrix2d meshlib.mrmeshpy.SymMatrix2d.__itruediv__	(		self,
		float	b )

det()

float meshlib.mrmeshpy.SymMatrix2d.det

(

self

)

computes determinant of the matrix

diagonal()

SymMatrix2d meshlib.mrmeshpy.SymMatrix2d.diagonal ( float diagVal )

static

eigens()

Vector2d meshlib.mrmeshpy.SymMatrix2d.eigens	(		self,
		Matrix2d	eigenvectors = None )

returns eigenvalues of the matrix in ascending order (diagonal matrix L), and
optionally returns corresponding unit eigenvectors in the rows of orthogonal matrix V,
M*V^T = V^T*L; M = V^T*L*V

eigenvector()

Vector2d meshlib.mrmeshpy.SymMatrix2d.eigenvector	(		self,
		float	eigenvalue )

computes not-unit eigenvector corresponding to a not-repeating eigenvalue

identity()

SymMatrix2d meshlib.mrmeshpy.SymMatrix2d.identity ( )

static

inverse() [1/2]

SymMatrix2d meshlib.mrmeshpy.SymMatrix2d.inverse

(

self

)

computes inverse matrix

inverse() [2/2]

SymMatrix2d meshlib.mrmeshpy.SymMatrix2d.inverse	(		self,
		float	det )

computes inverse matrix given determinant of this

maxEigenvector()

Vector2d meshlib.mrmeshpy.SymMatrix2d.maxEigenvector

(

self

)

computes not-unit eigenvector corresponding to maximum eigenvalue

normSq()

float meshlib.mrmeshpy.SymMatrix2d.normSq

(

self

)

computes the squared norm of the matrix, which is equal to the sum of 4 squared elements

pseudoinverse()

SymMatrix2d meshlib.mrmeshpy.SymMatrix2d.pseudoinverse	(		self,
		float	tol = 2.220446049250313e-16,
		int_output	rank = None,
		Vector2d	space = None )

for not-degenerate matrix returns just inverse matrix, otherwise
returns degenerate matrix, which performs inversion on not-kernel subspace;
\\param tol relative epsilon-tolerance for too small number detection
\\param rank optional output for this matrix rank according to given tolerance
\\param space rank=1: unit direction of solution line, rank=2: zero vector

trace()

float meshlib.mrmeshpy.SymMatrix2d.trace

(

self

)

computes trace of the matrix

xx() [1/2]

float meshlib.mrmeshpy.SymMatrix2d.xx

(

self

)

zero matrix by default

xx() [2/2]

None meshlib.mrmeshpy.SymMatrix2d.xx	(		self,
		float	arg1 )

xy() [1/2]

float meshlib.mrmeshpy.SymMatrix2d.xy

(

self

)

zero matrix by default

xy() [2/2]

None meshlib.mrmeshpy.SymMatrix2d.xy	(		self,
		float	arg1 )

yy() [1/2]

float meshlib.mrmeshpy.SymMatrix2d.yy

(

self

)

zero matrix by default

yy() [2/2]

None meshlib.mrmeshpy.SymMatrix2d.yy	(		self,
		float	arg1 )

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The documentation for this class was generated from the following file:

• mrmeshpy.pyi