All articles with 'random numbers' Tag
Excel Links – Change in Posting Schedule Edition
Ok, this is bound to happen. After regularly writing for about 2 years now, I have decided to revise posting schedule on Chandoo.org. Usually I write 5 posts per week (about 21-22 per month). While I have not ran out of ideas yet (my notebook still has 94 different ideas yet to become posts), I […]Continue »
Office 2010 Contest Winners are here!!!
Okay folks, sorry I took quite awhile to post this. But I was busy with excel school and getting my kids buzz cut. So here you go. Contest winners – India Paresh shah (website) Abhishek Jain Rahul Mulchandani (website) Contest winner – International Tom (this Tom) Congratulations Winners. You will very soon hear from me […]Continue »
How to pick a random date? [Formulas]
Often when you need to generate a sample from large data set, you may want to pick data from a random date. In such cases, you can use excel’s RAND() and RANDBETWEEN() formulas to pick a random date. Here I have included few examples,Continue »
Array formula to check if a number is prime [just for fun]
I am math-geek-wannabe, if there ever is such a category. During my 3rd year of graduation I went and purchased the volume 2 of Donald Knuth’s Art of Computer Programming and thus began my love with all things random and prime. I never really became the math-geek I always wanted to, instead I became an insurance expert with tons of passion for data and visualization. But when I get a chance to poke with randomness or numbers, I always lap it up with joy. And that brings us to an interesting array formula trick to check if a number is prime or not.
(assuming the number is in the cell B2) type the below formula and
hit ctrl+shift+enter and bingo, it tells you if the number is prime or not. Read on to find how it worksContinue »
Excel Links of The Week – Malmo Edition
In this week’s excel links learn how to make bingo cards, make your random numbers unique and prepare your data for charting and much more…Continue »