# Has anyone else developed a hate for cosine?

## Do you hate cos(x)?

7 vote(s)
17.9%

33 vote(s)
84.6%

3 vote(s)
7.7%
1. Feb 2, 2013

### Nikitin

It's always a brat to differentiate/integrate it due to the sign change. Why can't it be more like sine?

2. Feb 2, 2013

### rollingstein

We could just simplify the rules of integration instead. No more pesky sign changes. Why hate cosines when the fault lies in calculus.

3. Feb 2, 2013

### ZapperZ

Staff Emeritus
This has got to be the silliest question I've heard on here. And that's quite an accomplishment considering what has passed through this forum.

Zz.

4. Feb 2, 2013

### rollingstein

Does that get him a medal?

5. Feb 2, 2013

### Sayajin

Do you hate $\frac{1}{x}$ and $- \frac{1}{x^2}$ too?

6. Feb 2, 2013

### tahayassen

I don't hate it, but it's annoying.

Kind of how it's annoying to express 1/3 in decimal with base 10.

7. Feb 2, 2013

### Nikitin

Lol guys i was joking :p

8. Feb 2, 2013

### rootX

I like sin more than cos for same reasons as OP

9. Feb 2, 2013

### ZapperZ

Staff Emeritus
Should have posted this in the "Lame Jokes" thread.

Zz.

10. Feb 2, 2013

### Staff: Mentor

as in cos θ = sin (θ + π/2) = sin (π/2 - θ)?

11. Feb 2, 2013

### Staff: Mentor

The ones that I hate are sec(x) and csc(x). I can never remember which one is 1/sin(x) and which one is 1/cos(x), and I always have to look it up. :grumpy:

12. Feb 2, 2013

### Jimmy Snyder

The problem is not the cosine, it's the minus sign. I mean how can you have less than nothing? Even the name 'sign' is confusing because it sounds like sine. But it gets worse. They take the square root of -1 which of course doesn't exist even in your wildest imagination and use up a perfectly good index for it. What are we to make of nonsense like this:
$$\sum_{i=0}^IiI_i$$
No wonder Einstein said he wasn't much of a mathematician.

13. Feb 2, 2013

### rootX

I remember that in a very silly way. When do 1 over, sin becomes c[STRIKE]os[/STRIKE] and cos becomes s[STRIKE]in[/STRIKE] so we get csc for 1/sin and sec for 1/cos.

But one good thing for cos is that it has even terms in its taylor series and I like even numbers

14. Feb 2, 2013

### lisab

Staff Emeritus
I find the sign change endearing .

15. Feb 2, 2013

Agreed. Nothing can beat a change of sign. Except ,perhaps, a toasted cheese sandwich.

(Did you mean change of sin?)

16. Feb 2, 2013

### Kholdstare

Hating cosine function had been banned since 1848. The fine can reach upto \$200 with a one year imprisonment.

17. Feb 2, 2013

### kevinferreira

We live in a free society, come on, every mathematical object should be let to leave its life as it wishes and how it wishes! Don't tell me you also hate odd numbers? Come on, prejudice is bad.

I don't want to see a future where you have cosinetration camps for these 'special objects'.

18. Feb 2, 2013

### WannabeNewton

loool that was epic Zz

19. Feb 2, 2013

### jhae2.718

http://img.spikedmath.com/comics/307-math-mnemonic-1.png [Broken]

There you go...

Last edited by a moderator: May 6, 2017
20. Feb 2, 2013

### phion

This made me laugh. Thank you.