Two lines have equations \(y = {m_1}x + 3\) and \(y = {m_2}x - 7\). If the lines are parallel then \({m_1} = {m_2}\) and if \({m_1} = {m_2}\) then the lines are ...

Five squares and a trapezoid in between - many children would find it difficult to recognize the different geometric shapes. Crows, however, manage this amazingly well, as a team led by Andreas Nieder ...

Remember that to find the equation of a straight line you need to know its gradient and a point on the line. In some instances you are told the value of the gradient, however there are times where you ...

Abstract: The tree of shapes of an image (ToS) is a powerful hierarchical representation of image. Being self-dual and contrast invariant, it is well-suited for several image processing tasks such as ...