علم الزمن والوقت
In differential calculus, inflection point or point of inflection is a point where the function changes concavity, i.e. from being concave up “positive curvature” to being concave down “negative curvature” or vice versa. In the “Prophetic biography” “The Archers’ Hill” represents the hill, where the Prophet peace and blessing of Allah …
أكمل القراءة »In the point of inflection and on the Archers’ Hill …
