On the HacDC mailing list, we’ve been having a discussion about Wolfram|Alpha and some of the amazing things it can do (and some of the controversy already surrounding it). Here ‘s the return on a query for resistor values.


Gareth Branwyn

Gareth Branwyn

Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. And he has a new best-of writing collection and “lazy person’s memoir,” called Borg Like Me.

  • Gonzalo

    If you’re a yubnub user you could also find useful the command resistor. As:

    resistor 4k7 -tol 5

    It takes you to

    It also gives you the nearest standard resistor value.

  • Jack

    There does seem to be a bit of controversy, but I am still eager to try it out.

  • jaron

    Whoa, whoa, whoa…. major terms of service violation here.

  • Frank

    It’s strange how it can find a resistor given the colours, but how do you go the other way?

    I’ve tried “25k”, “25k resistor”, “25k resistor colours” but it can’t work it out. I guess the wolfram programmers haven’t added this kind of query yet.

    • Delfairen

      You would need to search for 25k ohm resistor etc