Why are TI-89s so confusing to use?

[[REDACTED]]

I can't get it to evaluate definite integrals. 

[guff]

because you're retarded

the syntax is pretty intuitive

[C.Mongler]

i just use a casio because im a retard

[FAMY2]

Don't real men do it in there head or on paper?

    caterpie;

[guff]

Don't real men do it in there head or on paper?

    caterpie;

uh well no way in hell am i going to numerically evaluate a definite integral by hand if i have the choice but just about everything else i will

[Blaze-Senpai]

Don't real men do it in there head or on paper?

    caterpie;

No. You're retarted if you even bother trying

[Ezloﺕ]

No. You're retarted if you even bother trying

im not the type to ridicule someone for their spelling but

lol

[FAMY2]

No. You're retarted if you even bother trying

Well Guff isn't retarded.  Knowing your limits is a pretty smart thing.

[guff]

Well Guff isn't retarded.

who's been spreading these nasty rumors about me again

[Blaze-Senpai]

im not the type to ridicule someone for their spelling but

lol

There was nothing spelt wrong in that sentence.

[FAMY2]

who's been spreading these nasty rumors about me again

I think he posted in this thread.   

lol @ Blazenkins.

[ncba93ivyase]

There was nothing spelt wrong in that sentence.

[The artist formally known]

Don't real men do it in there head or on paper?

    caterpie;

find the inverse sine of 1.234 degrees

[ncba93ivyase]

find the inverse sine of 1.234 degrees

i'm going into 12th and i don't even know what the hell 'sine' is

southern education sucks

[The artist formally known]

i'm going into 12th and i don't even know what the hell 'sine' is

southern education sucks

thats like trig stuff. it's because im a genius in math duh


it's y divided by r