def get_glob_loc(A,B):
    a=A.x
    b=A.y
    c=B.x
    d=B.y
    r_1=A.dist
    r_2=B.dist
    #first need to create the line. the one going through the midpoint and the points of intersection, perpendicular to the line going through A and B
    gradient_of_A_B=(d-b)/(c-a)
    inv_gradient_of_A_B=(-1)/gradient_of_A_B

    midpoint_A_B=coordinate((a+c)/2,(b+d)/2)
    #identify the C constant
    c=midpoint_A_B.y-(inv_gradient_of_A_B*midpoint_A_B.x)

    #plug into the rearranged circle formula
    #simplification variable:
    simple=r_1**2 - ((inv_gradient_of_A_B*midpoint_A_B.x)+c-b)**2
    x_pos=a+math.sqrt(simple)
    x_neg=a-math.sqrt(simple)

    y_pos=(inv_gradient_of_A_B*x_pos)+c
    y_neg=(inv_gradient_of_A_B*x_neg)+c

    pos=coordinate(x_pos,y_pos)
    neg=coordinate(x_neg,y_neg)