Extends php BCMath lib for missing functions like floor, ceil, round, abs, min, max, rand for big numbers. Also wraps existing BCMath functions.

This article was originally published with the title “ A Plan for Converting the Sahara Desert into a Sea ” in Scientific American Magazine Vol. 107 No. 6 (August 1912), p. 114 doi:10.1038 ...

In the Question investigation, we hand over the science to budding scientists, by asking pupils to create their own scientific questions, and to develop their own investigations. Download our ...