def test_dyadic_str():
assert vsprint(Dyadic([])) == '0'
assert vsprint(y) == 'a**2*(N.x|N.y) + b*(N.y|N.y) + c*sin(alpha)*(N.z|N.y)'
assert vsprint(x) == 'alpha*(N.x|N.x) + sin(omega)*(N.y|N.z) + alpha*beta*(N.z|N.x)'
assert vsprint(ww) == "alpha*N.x + asin(omega)*N.y - beta*alpha'*N.z"
assert vsprint(xx) == '- (N.x|N.y) - (N.x|N.z)'
assert vsprint(xx2) == '(N.x|N.y) + (N.x|N.z)'
def test_vector_str_arguments():
assert vsprint(N.x * 3.0, full_prec=False) == '3.0*N.x'
assert vsprint(N.x * 3.0, full_prec=True) == '3.00000000000000*N.x'
def test_vector_str_printing():
assert vsprint(w) == 'alpha*N.x + sin(omega)*N.y + alpha*beta*N.z'
assert vsprint(omega.diff() * N.x) == "omega'*N.x"
assert vsstrrepr(w) == 'alpha*N.x + sin(omega)*N.y + alpha*beta*N.z'
def test_vector_str_printing():
assert vsprint(w) == 'alpha*N.x + sin(omega)*N.y + alpha*beta*N.z'
assert vsprint(omega.diff() * N.x) == "omega'*N.x"
assert vsstrrepr(w) == 'alpha*N.x + sin(omega)*N.y + alpha*beta*N.z'