How do I do 'mod' on this calc?

$$\text{do } 2^{nd}\text{ - Button and use mod}$$

I don't think our calc supports that...but you can do it here

http://www.wolframalpha.com/examples/Math.html

Just hit the "do basic arithmatic" box and it will take you to a screen where you can key it in directly.....

Thanks Heureka,

I didn't know there was a MOD button on this calculator either!

Melody.

... mod Button?

drop a long time the $$\div$$ Button. He will change to $$\mod$$ Button:

... asin Button?

drop a long time the $$\sin$$ Button. He will change to $$asin$$ Button:

 and so on...