The additive inverse of a number undoes the effect of adding that number. This means that, for example, the effect of adding a number by subtracting the same number can be undone. So, if 7 is added to 4, the result is 11. If 7 is subtracted from 11,...

A genetic inversion is chromosomal mutation that results in an alteration of that chromosome's gene sequence. Inversions (inversional mutations) occur when a section of a chromosome is broken away and then re-attached to the chromosome in an...

Inverse is the opposite of something. This word and its derivatives are used greatly in mathematics, as illustrated...

It's a regal but ghostly transformation: A golden ball turns itself inside out to reveal its purple inner surface without suffering any rips or creases along the way. Mathematicians call this process sphere eversion. The sphere acts as if it were made of...

The major part of realization theory concerns the identification of a given holomorphic function as a transfer (characteristic) function of a system (colligation) or a linear fractional transformation of such a function. Systems whose main operator is bounded have been investigated thoroughly, and...

Utah's world-class mountain peaks have been barely visible at times from the floor of the Salt Lake valley. A winter storm that won't quit? No, it's nasty pollution that just won't blow away.Northern Utah's valleys have been smothered by an "inversion," a blanket of warm...

WHEREAS, for too long, beer-sharing, staff-crossover (we're looking at you, Rebecca Traister and Suzy Hansen) and mutual liberal head-nodding has taken place between the staffs of the New York Observer and Salon.com, and; WHEREAS, Salon.com Editor in Chief Joan Walsh thinks that Observer D.C. correspondent...