My son and I have been consumed this weekend by a fun new iOS game called NumBurst. If you like brain teasers and card games, this one’s for you! With two free levels and two paid levels, there’s plenty to keep you going as you try to solve these fun math problems. The basic idea goes like this:
You’ve got a goal, which is a number, let’s say the number 3. Then you’ve got a bunch of cards, say 2, 4 and 1 and you’ve got to add them, divide them, subtract them, etc, until you hit your goal. The problems start out real simple, which is great for the kids and helping them learn math, but quickly get pretty darn challenging.
Plus, you’re playing against the clock! Once you’ve completed a puzzle, you get the option to post that time on Facebook and try to have friends do the same problem and see if they can beat your time. Excellent for the competitive neatoramanaut, eh?
You can download it here, or, of course, on your iPhone.
Comments (0)
In the Mandelbulb paragraph, there's a "#D" where I think you meant "3D", but that's a minor quibble. Great article!
Sorry, that's not correct, unless the isosceles triangle also just happens to be a RIGHT triangle (the hypotenuse is the side opposite of the right angle). An isosceles triangle is simply a triangle with two sides of the same length (an equilateral triangle is also an isosceles triangle, incidentally).
Btw, "isosceles" just means that at least two sides of the triangle are the same length--the third could be longer, or shorter, or even the same size.
So, you could have a very wide angle between the two same-length sides (as in your spidron) or
the angle could be very narrow (think of the top part of a capital A)
or they could all be the same length--every equilateral is also isosceles.
(But *not* every isosceles triangle is equilateral--just as every square is a rectangle ie, has 4 right angles, but not every rectangle is a square.)
best regards, Daniel Erdély
Daniel Erdely is in fact the originator of spidrons and some other related forms Here's his main site: http://spidron.szinhaz.org/