FIGURING IT OUT: J. Chakradhar, explaining with a slideshow how the day of any date in an "nth" year can be arrived at.

TIRUPATI: On what day did the Panipat war conclude? Is it on a Sunday that the Portuguese landed on Indian soil? History may have provided us the exact date, but it might not have an answer for these `day-specific' questions. Likewise, on what day will a given space shuttle land on a distant planet will be an equally intriguing question to which astronomy may fail to provide an answer.

Here is a calendar that helps one find out the day for any given date for `infinite' number of years. J.Chakradhar, a student of Tirupati claims to have developed a novel calendar in the form of a chart, which can find out the day, for any date, of any year, past or future. ``The chart is designed in a simple way that one can find out the day of any date with an easy calculation in less than five minutes", he says.

Simplified procedure

The infinite year calendar has a box with 31 dates, another one with the seven week days and a correlated box with months. There is again a matrix of common codes (CD), which is vital in searching for the day.

The calculations are based on the fact that a day (say, Tuesday) falls on the same date and month again in the 28th year.

The process is simple. A year has to be selected and it has to be divided by 28.

In the quotient, the decimal point has to be equated with the one referred to in the CD box of the chart and the corresponding month has to be taken. A close search for the code matching with the month box and the date box reveals the day on that date. Chakradhar claims to have designed the chart four years ago, but decided to bring it to light only now.

The young man, studying final year B.Tech (Information Technology) at Sree Vidyanikethan Engineering College, said that he would further simplify the chart by writing a software code. The calendar would be made available to the public for general use.

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