cis(x) or cos(x)+isin(x)? (1 Viewer)

[ohexploitable]

so i herd they get bitchy when students use shorthand

what should i write in the exam?

 

[BobMac]

I use the long one cause it's in the syllabus and the other way isn't so why risk it?

 

[stampede]

lol wat i used cis(x)

there is no difference

saves time

still win at hsc

 

[hup]

use e^ix to show off

 

[Alkanes]

lol cis for the win. cbf writing the whole thing.

 

[slyhunter]

Where did you hear this OE?

 

[Riproot]

use e^ix to show off

What is this?
I use cisa up until the last line of working involving cis, then I use cosa + isina.

 

[AAEldar]

What is this?
I use cisa up until the last line of working involving cis, then I use cosa + isina.

It's how it's done at Uni.

I don't use however.

 

[XTsquared]

What is this?
I use cisa up until the last line of working involving cis, then I use cosa + isina.

This, why bother writing cos(x) +isin(x) all the way until the end. Just use cis(x) from the start and then the very last line use cos(x) + isin(x).

 

[kaz1]

if you're going short use e^i*theta