两直线交点在线计算
两直线:2x-3y-3=0和x+y+2=0,联立解出x和y值就可以啦。
x+y+2=0 =>y=-x-2 代入2x-3y-3=0 得 =>2x+3x+6-3=0 =>x=-3/5 =>y=3/5-2=-7/5
所以两直线交点为 (-3/5,-7/5)
两直线:2x-3y-3=0和x+y+2=0,联立解出x和y值就可以啦。
x+y+2=0 =>y=-x-2 代入2x-3y-3=0 得 =>2x+3x+6-3=0 =>x=-3/5 =>y=3/5-2=-7/5
所以两直线交点为 (-3/5,-7/5)