Introduction In Algebra we have what is called algebraic equation that is an mathematical expression described in terms of an unknown variable x. For instance is an algebraic equation of first order(because the highest order of the x term is…

## Differential equations: estimating the time of death

For those who still haven't found the usefulness/beauty of math (and in particular calculus) I propose a small real-life application inspired by a CSI episode: estimating the time of death. The problem Let's suppose that you are a crime investigator…

## Derivative applications in real life

The derivative has probably unlimited applications in physics, biology, economics and generally in real life. But let's see how we can use it to solve simple problems like optimizing the usage of a metal sheet when we want to build…

## Equation of the tangent to the curve at a point

Calculus is one of those branches of math that I must say I love it. It help us to find solutions to problems where the other branches fail. The following is just an example where calculus allows us to find…

## Calculul aproximativ al radacinii patrate

Aceasta metoda descrie calculul aproximativ a radacinii patrate. Dorim sa aproximam valoarea . Lasand la o parte toate celelalte metode cunoscute de extragere a radacinii patrate dintr-un numar, voi incerca sa va prezint o metoda simpla si eficienta. Metoda se…