I found the best calculator for woodworking (provided that you HAVE to use
that blody imperial system, if you are wise enough to use metric, good for
you, however, you know how hard it is when all the tools and the kerfs are
It is the HP33S.
why is it so good? it has a way of working with fractions which makes
working with inches and fractions of super easy and cool!
let me give you some example:
- You can tell the calculator to only work with 1/16. ie, every number will
be displayed as X Y/16 (with Y<16) (you can replace 16 by any number < 4096)
- You can tell the calculator to only work with fractions which are a
divider of a number. for example, only with fractions wich are a divider of
16, in this case, any number will be displayed as X Y/Z where Y<Z and Z is
either 16, 8, 4, 2 or 1.
but as you know, in most cases, number are not exactly a fractions of 1/16
(or other fraction), so how does the calculator display 1.2 for example in
fractions of 1/16?
well, it displays 1 3/16 and a UP ARROW meaning that the number is a litle
bit MORE than 1 3/16, but is closer to 1 3/16 than 1 1/4!!! (of course, a
down arrow means the inverse)...
isn't that cool!!!!
the last great thing is the way to enter a fractional number such as 1 3/16
you type 1 . 3 . 16 (use the decimal . twice) to separate the 3 parts of the
number! it is so easy!!!!
The calcualtor has of course lots of other features, but when I put 2+2
together and realized the power of this function in woodworking, I was
link is at: http://www.hp.com/calculators/scientific/33s /
PS: I do work for HP (as an engineer), so my post can be concidered as
biaised, however, you have to admit that this is a great function!