vplus = function(v1, v2)
    return [v1[0]+v2[0],v1[1]+v2[1]]
end function

vminus = function (v1, v2)
    return [v1[0]-v2[0],v1[1]-v2[1]]
end function

vmult = function(v1, scalar)
    return [v1[0]*scalar, v1[1]*scalar]
end function

vdiv = function(v1, scalar)
    return [v1[0]/scalar, v1[1]/scalar]
end function

vector1 = [2,3]
vector2 = [4,5]

print vplus(vector1,vector2)
print vminus(vector2, vector1)
print vmult(vector1, 3)
print vdiv(vector2, 2)