Operator Symbols
U+2211∑N-ary summationU+222B∫IntegralU+222C∬Double integralU+222D∭Triple integralU+222E∮Contour integralU+222F∯Surface integralU+2230∰Volume integralU+2231∱Clockwise integralU+2232∲Clockwise contour integralU+2233∳Anticlockwise contour integralU+2A0A⨊Modulo two sumU+2A0B⨋Summation with integralU+2A0C⨌Quadruple integral operatorU+2A0D⨍Finite part integralU+2A0E⨎Integral with double strokeU+2A0F⨏Integral average with slashU+2A15⨕Integral around a point operatorU+2A16⨖Quaternion integral operatorU+2A17⨗Integral with leftwards arrow with hookU+2A18⨘Integral with times signU+2A19⨙Integral with intersectionU+2A1A⨚Integral with unionU+2A1B⨛Integral with overbarU+2A1C⨜Integral with underbar