Microsoft Excel 2010 can be a huge help for a business when it comes to crunching the businesses numbers. Excel has a number of financial functions revolving around the periodic interest rate, which ...

This work, part II in a series, presents an efficient method for evaluation of wave scattering by doubly periodic diffraction gratings at or near what are commonly called 'Wood anomaly frequencies'.

In this paper the positive and strictly contractive extension problems for almost periodic matrix functions are treated. We present necessary and sufficient conditions for the existence of extensions ...

In the wee hours of the late 17th century, Isaac Newton could be found locked up in his laboratory prodding the secrets of nature. Giant plumes of green smoke poured from cauldrons of all shapes and ...

One hundred fifty years after Russian chemist Dmitri Mendeleev published his system for neatly arranging the elements, the periodic table it gave birth to hangs in every chemistry classroom in the ...

Dmitri Mendeleev, the Russian chemist who published what is regarded as the first widely recognised periodic table, has been celebrated with his own Google doodle on what would have been his 182nd ...