def test_I(): from sympy.functions import sign as sgn y = Symbol("y") assert gruntz(I * x, x, oo) == I * oo assert gruntz(y * I * x, x, oo) == y * I * oo assert gruntz(y * 3 * I * x, x, oo) == y * I * oo assert gruntz(y * 3 * sin(I) * x, x, oo).simplify() == sgn(y) * I * oo
def test_I(): from sympy.functions import sign as sgn y = Symbol("y") assert gruntz(I*x, x, oo) == I*oo assert gruntz(y*I*x, x, oo) == y*I*oo assert gruntz(y*3*I*x, x, oo) == y*I*oo assert gruntz(y*3*sin(I)*x, x, oo).simplify() == sgn(y)*I*oo