URGENT!!

[kledis23]

This is a question from math. Is -lnx + lny = lny - lnx ?

[mbozzi]

Yes. Addition is commutative.

[kledis23]

what about this ? -logx + logy = logy- logx?

[kledis23]

What is this as a single log then ? -3lnx + 4/3 ln^2

[mbozzi]

Yes,
-logx + logy = logy- logx

I'm assuming log is a logarithm...

I would do the same for ln, but ln^2 is nonsense. What do you mean there?

[gunnerfunner]

This is a question from math

a maths dedicated forum would be more suitable for your queries

[jonnin]

fyi log is base 10, lg is base 2, ln is base e. There may be some other standard ones that ive forgotten. log with a number is that base.

i'd guess ln^2 lost its x in a typo.

[kledis23]

I figured it out. Thank you for taking your time. Actually I did a mistake the real one is -3lnx + 4/3 lnx^2. And by the way programming is math.

[jonnin]

some programming is math, and most programming has at least simple math (adding stuff up, i++ etc type statements). Computer theory boils down all a computer can do, and you can do 95% of it with an add statement, its true. But try writing code that way :) A lot of programming is string processing with no real math at all, conceptually though. You don't need multivariable differential equations to generate HTML.

[gunnerfunner]

programming is math

no, it's not. If it were, it'd be called math, not programming. Programmers on this site also use English to communicate with each other – so are you going to shove your English literature queries over here too? On top of that you're scattering your question on random threads started by others: http://www.cplusplus.com/forum/general/214374/#msg998301