symforce.databuffer module

class DataBuffer(name, n=None, m=None)

Bases: MatrixSymbol

Custom class to make sympy’s MatrixSymbol consistent with symengine, where we have a custom 1-D Databuffer. We want to force Databuffers to be 1-D since otherwise CSE will (rightfully) treat each index as a separate expression.

Parameters:

• name (str) –

• n (T.Optional[T.Scalar]) –

• m (T.Optional[T.Scalar]) –

Return type:

DataBuffer

default_assumptions = {'algebraic': False, 'commutative': False, 'complex': False, 'composite': False, 'even': False, 'extended_negative': False, 'extended_nonnegative': False, 'extended_nonpositive': False, 'extended_nonzero': False, 'extended_positive': False, 'extended_real': False, 'imaginary': False, 'integer': False, 'irrational': False, 'negative': False, 'noninteger': False, 'nonnegative': False, 'nonpositive': False, 'nonzero': False, 'odd': False, 'positive': False, 'prime': False, 'rational': False, 'real': False, 'transcendental': False, 'zero': False}

is_algebraic = False

is_commutative: bool | None = False

is_complex = False

is_composite = False

is_even = False

is_extended_negative = False

is_extended_nonnegative = False

is_extended_nonpositive = False

is_extended_nonzero = False

is_extended_positive = False

is_extended_real = False

is_imaginary = False

is_integer = False

is_irrational = False

is_negative: bool | None = False

is_noninteger = False

is_nonnegative = False

is_nonpositive = False

is_nonzero = False

is_odd = False

is_positive = False

is_prime = False

is_rational = False

is_real: bool | None = False

is_transcendental = False

is_zero: bool | None = False