Today is #PythagoreanTheoremDay. Also known as “Right Triangle Day,” it’s a day when the sums of the squares of the month and day equal the square of the last two digits of the year. Clever and elusive, we’re celebrating it now because the next time this happens is in 2025! 📐
Here's a quick method to calculate the square root of a number (√y) by hand
Q: By the end of the 9th day of the 9th month (i.e. 9th September), the 252nd day of the year, how many minutes had passed this year? A: 9! = 252 days= 9×28 days= 9×28×24 hours= 9x28×24×60 minutes= 9×(7×4)×(8×3)×(6×5×2) minutes= 9×8×7×6×5×4×3×2 minutes= 9! minutes
I have been a bit busy because of multiple things happening on personal and professional front. So I missed blogging about some interesting events/topics. Finally I decided to prioritise and post this blog. (As they say: "It's never about time; it's about priorities and genuine intent") I am combining two blog topics/themes into one because... Continue Reading →
Do you know what "emirp" is? An emirp is a prime whose reversal is a different prime. A cyclic emirp is an emirp that generates only more emirps when the last digit is successively moved to the front (or vice-versa). The largest known cyclic emirp is 939,391.
Today is a memorable day for me. Exactly 20 years ago, on 15th July 2000 I appeared for my first interview and successfully cracked it! So I thought of writing about it. It was during the campus placements in the last year of Engineering. I had just entered the last year in year 2000. The... Continue Reading →
X1 ÷ 1X = 3What is X = ? Hint: X can be a digit or a number (a combination of digits)
I like Mathematics and Puzzles and Problem Solving from very young age. Even today I dabble with many puzzles in my free time and I am in fact working on a book of puzzles (well, I am ashamed of saying so, because it's in the making for last 2+ years). Puzzles, riddles etc, if used... Continue Reading →
Today is the 100th death anniversary of the amazing mathematician Srinivas Ramanujan. He passed away at a young age of 32 on April 26, 1920, at Kumbakonam in Tamil Nadu. I have written a few times about Srinivas Ramanujan. However today is a special milestone - it's 100th anniversary. I had written in an earlier... Continue Reading →
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