'Numbers with scientific notation should display nicely'

def test_number_sci_notation(self):

    self.assertEquals(preview.latex_preview('6.0221413E+23'), '6.0221413\\!\\times\\!10^{+23}')
    self.assertEquals(preview.latex_preview('-6.0221413E+23'), '-6.0221413\\!\\times\\!10^{+23}')
