September 3, 2012, in Sydney (Ian Sloan) and Singapore (Peter Hall)   Introduction. Ian Hugh Sloan was born in Melbourne on June 17, 1938, and educated at Scotch College, Melbourne, and Ballarat College, before going on to undergraduate degrees in physics and mathematics at the University of Melbourne. Shortly after completing his BSc and BA (Hons) in late 1960 he joined the Colonial Sugar Refining Company. This might sound like an inauspicious start for a research mathematician, but by the early 1940s, CSR, as it is called today, had already diversified into building products and chemicals, and by the late 1950s had plans for a future based largely on scientific research. Thus, Ian was able to undertake a PhD in theoretical atomic physics at University College, London while receiving a salary from CSR. However, when Ian returned to Australia in 1964 he found a changed CSR. In particular, the research project on which he was supposed to work had collapsed, and his employer was more focused on short-term, rather than long-term, goals. So he left, and joined the University of New South Wales in 1965, and has been there ever since. Over the ensuing 48 years he has developed and fostered Australia’s premier numerical analysis programme.

The editor of the English section of Gonit Sora, writes a monthly column devoted to mathematics in a teen magazine called Young NE. The editor of Young NE was kind enough to grant us permission to republish the column after it appears on print. Below is the column that appeared in Vol 1, Issue 3, July 2013 of Young NE. [ad#ad-2]  

[caption id="attachment_3363" align="alignleft" width="418"] Google Doodle depicting Fermat's Last Theorem[/caption] We can find infinitely many solutions that can solve the equations $$x+y=z$$ and $$x^2+y^2=z^2$$ in integers, but what about the equation $$x^3+y^3=z^3$$ or more generally $$x^n+y^n=z^n$$, where n is an integer greater than 2 and x,y,...

Summary: Following the Indian (Hindu) calendar, we Indians are celebrating the seasonal festivals on wrong dates. It is because in the Indian calendars, the seasons are out of phase with the real tropical phenomenon of the earth. This article analyses how and why we are doing that and what to do about it. In the Indian calendars, the Makar Sankranti which marks the transition of the Sun into Makar Rasi (Capricorn), generally falls around 14th or 15th January of the Gregorian calendar. Makar Sankranti also marks many of the Indian harvest festivals such as the Pongal of the Tamils, the Bhogali Bihu of the Assamese, the Maghi (Lohri) of the Punabis, Bhogi in Andhra Pradesh etc. Many communities start their new years on this date. Astronomically, Makar Sankranti is the winter solstice. It is the shortest day marking the beginning of the Uttarayan (the northern journey) of the Sun with gradual increase of the duration of the day. The Bhagavad Gita mentions great importance of the Uttarayan. This was the reason why Bhishma, when wounded in Mahabharata war, chose to await for the Makar Sankranti, before choosing to die. In the Jagannath temple at Puri the Uttarayana Yatra is celebrated on this Makar Sankranti day.