Math Is Fun Forum

Perhaps occasionally, but useful random stuff nevertheless.
And please stop being so elitist.

When you're using the Pythagorean theorem and you have sides of equal length:

The base multiplied by the square root of the number of terms being sqrted gives the answer.

*Only works to the power of 2*

Wether I'm typing back to front or front to back I always seem to miss the 'f'. >_<

Um, ok you can put all the shortcuts you've ever found in math (not just arithmetic), just so long as this doesn't become an infinitely broad topic

Whoa that's pretty cool, what is this program you're using?

Well, i've been typing for a very long time (since grade 5), and it's very helpful if you learn the proper technique (and chat a lot in real-time games )
You should always start slowly and then once you've practiced enough and think you are ready, go all out. (W00T 1.462)

Heh, I've played this before; it's awesome.
W00TW00T 1.662 seconds and Ranked 144.
I am doing it on a laptop, though, and I must say it's a lot easier than on a desktop, as you can slide between the keys with your fingers.

Make sure your calculator is in degree mode.
This exercise can be done with the windows scientific calculator. Simply tick the 'Inv' box, the number, then sin, cos or tan.
For instance, to find the inverse function of tan-¹ 0.24, type:
Inv -> 0.24 -> tan

The discriminants of the questions above can be worked out with the aid of:

Where