Birth cards

[greydragonmagic]

A while ago I made some pictures meant to explain how birthcards are calculated. Here they are:




(also in a post on tumblr)

Here's a link to a card calculator so you don't have to do the math.

Do you guys know about birthcards? What do you think of them? Do you like yours?

Comments

[elf]

My numbers add up to 100. I suppose that's the 10/1 combination, but that's a weird way to look at it. (If I add up the numbers as single digits instead of splitting the year into a pair of two-digit numbers, I get 37, which nicely reduces to 10 & 1.)

[greydragonmagic]

Hmm, did you double check with the calculator?

[elf]

The calculator turns up the 10/1 split, which is what I expected; it doesn't show the math it used. In the past, I'd always heard "add up all the single digits;" I assume the instruction to split the year into two parts is to guarantee getting at least a two-digit number. Otherwise, someone born on March 1, 2002 is an 8, without the extra number. (Even if split, though, they're 26/8 rather than 17/8.)

The links to the tumblr post and calculator are broken - they're using "a herf" instead of "a href". I had to use "view source" to find them.

[greydragonmagic]

Oh no, I'm really sorry about that, should be fixed now.