## Playing with 56

Find the smallest number n such that
the digit sum of n is equal to 56, the number n is divisible by 56 and its two last digits are Read more..

Find the smallest number n such that
the digit sum of n is equal to 56, the number n is divisible by 56 and its two last digits are Read more..

Fibonacci sequence can be found everywhere
in nature. First mentioned by Leonardo Fibonacci, a
medieval mathematician, who was trying to solve the
problem of rabbit population growth. It became one of
the most famous sequence in all of mathematics, describing
innumerous patterns of natural phenomena. Here is a
mathematical description for some of its fundamental properties.
Read more

Using no more than Pythagorean theorem it can be shown that the graph
of any quadratic function is a parabola Read more...

Reverse and forward search are very helpful features in LaTex compilation. Here is how we do it with vim and zathura... read more

The following is a list of links to useful textbooks
in mathematics, available for free on the Internet. All books are
legally safe to download, The books are in printable format - Postscript (PS) or Portable Document Format
(PDF). You are free to download, read and print them.
Read more...

YouTube channels, videos and course lectures.