Hey I'm so confused, my TI-83 Plus started to give me ERR: DOMAIN today when ever I put a sec or cosec in that isn't equal to 0 or 1. It only just started doing this and I haven't touched anything or changed anything whats going on?
Thanks
Hey I'm so confused, my TI-83 Plus started to give me ERR: DOMAIN today when ever I put a sec or cosec in that isn't equal to 0 or 1. It only just started doing this and I haven't touched anything or changed anything whats going on?
Thanks
No idea, try resetting. If that doesn't work, you can at least work around it by doing 1/cos(x) and 1/sin(x)
A bit of a hassle, sure, but my calculator doesn't even have an option for such functions, it's not too bad. (though not being able to convert decimals to fractions is a pain in the *ahem*)
I can't readily check the TI84 but on a TI89 you can get sec( and csc( from the catalogue.
When accessing the catalogue I find it useful to use the alpha key to scroll to the starting character I want (but you sometimes might need to do it twice) ..... alpha 3 (S) gets you to sec(
i have a TI-83 plus and there is no sec or csc built in. It has sin cos and tan. when you use the 2nd button, sin you get sin^-1, cos gives you cos^-1, and tan you get tan^-1
the only way i have ever been able to enter the sec, csc, and cot is to use the simple formulas
sec= 1/cos
csc= 1/sin
cot= 1/tan