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Who discovered calculus?

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Two students from Indonesia, Christa Lorenzia Soesanto and Natasha Sutedja, scored proud achievements at the European Girls Mathematical Olympiad (EGMO) in 2012 at Murray Edwards College, UK (10-16/4/2012).

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In school, you have been taught that multiplying two negatives makes a positive, but have you ever wondered why? This article shows complete mathematical proof that multiplying two negatives makes a positive and it uses incredibly simple maths that almost anyone can understand.

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Read on to know what transcendental number, orthocentre and some other similar mathematical terms mean.

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This describes table of contents for one of the author’s unpublished books titled, Mathematical Encounters for the Inquisitive Mind. Mathematical Encounters for the Inquisitive Mind has more than 200 pages and was typeset with Tex/Latex program developed by Professor David Knuth (of Stanford University) and Leslie Lamport respectively.

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The mathematicians of ancient Greece attributed characters to numbers and awarded some of the status of perfection. For Euclid, one of the finding fathers of modern mathematics, a perfect number was one that equaled the sum of its own divisors – that is numbers that will divide into it without leaving a remainder. The first perfect number is 6: its divisors are 1, 2, and 3, 14 which add up to 6. The second is 28 (1 + two + four + seven + 14). The Greeks knew only two other perfect: 496 and 8,128.

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How can one be sure of how to interpret statistics? What is the best method?

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On filtering and operational amplifiers, comparisons between mathematical equations and simulations using NI ELVIS, and some explanations and evaluations of the different types of op-amps.