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How to Use Mathematical Series in the Real World

Learn how mathematical series and the compound interest formula can be used in the real world to calculate how fast money grows in recurring investments.

By
Jason Marshall, PhD
Episode #67

Number of the Week

Before we finish up, it’s time for this week’s featured number selected from the various numbers of the day posted to the Math Dude’s Facebook page. This week’s number is 10^22…that is, a 1 with 22 zeros after it. What could a number that big possibly be? Well, it’s an estimate of the number of grains of sand on all the beaches of the world. While that’s a huge number, what’s even more incredible is that the new system for assigning addresses to Internet devices that was tested last week contains enough addresses to assign one to each of those 10^22 grains of sand on Earth…300 trillion times! So, I think we’re all set for Internet addresses for a while.

Wrap Up

Okay, that’s all for today. Remember to become a fan of the Math Dude on Facebook where you’ll find a new number of the day and math puzzle posted each and every weekday. And if you’re on Twitter, please follow me there too. Finally, if you have math questions, feel free to send them my way via Facebook, Twitter, or by email at mathdude@quickanddirtytips.com.

Until next time, this is Jason Marshall with The Math Dude’s Quick and Dirty Tips to Make Math Easier. Thanks for reading, math fans!

Dollar Sign image courtesy of Shutterstock