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src/s/y/sympy-0.7.5/sympy/matrices/expressions/tests/test_matrix_exprs.py   sympy(Download)
from sympy.core import S, symbols, Add, Mul
from sympy.functions import transpose, sin, cos, sqrt
from sympy.simplify import simplify
from sympy.matrices import (Identity, ImmutableMatrix, Inverse, MatAdd, MatMul,
        MatPow, Matrix, MatrixExpr, MatrixSymbol, ShapeError, ZeroMatrix,
def test_MatPow():
    A = MatrixSymbol('A', n, n)
 
    AA = MatPow(A, 2)
    assert AA.exp == 2
    assert A**0 == Identity(n)
    assert A**1 == A
    assert A**2 == AA
    assert A**-1 == Inverse(A)
    assert A**S.Half == sqrt(A)
    X = MatrixSymbol('X', n, n)
    objs = [Identity(n), ZeroMatrix(m, n), A, MatMul(A, B), MatAdd(A, A),
            Transpose(A), Adjoint(A), Inverse(X), MatPow(X, 2), MatPow(X, -1),
            MatPow(X, 0)]
    for obj in objs:

src/s/y/sympy-HEAD/sympy/matrices/expressions/tests/test_matrix_exprs.py   sympy(Download)
from sympy.core import S, symbols, Add, Mul
from sympy.functions import transpose, sin, cos, sqrt
from sympy.simplify import simplify
from sympy.matrices import (Identity, ImmutableMatrix, Inverse, MatAdd, MatMul,
        MatPow, Matrix, MatrixExpr, MatrixSymbol, ShapeError, ZeroMatrix,
def test_MatPow():
    A = MatrixSymbol('A', n, n)
 
    AA = MatPow(A, 2)
    assert AA.exp == 2
    assert A**0 == Identity(n)
    assert A**1 == A
    assert A**2 == AA
    assert A**-1 == Inverse(A)
    assert A**S.Half == sqrt(A)
    X = MatrixSymbol('X', n, n)
    objs = [Identity(n), ZeroMatrix(m, n), A, MatMul(A, B), MatAdd(A, A),
            Transpose(A), Adjoint(A), Inverse(X), MatPow(X, 2), MatPow(X, -1),
            MatPow(X, 0)]
    for obj in objs: