How do you calculate 3 = 1.09^x

[mcmilljb]

Originally posted by: A5
The people saying to use ln() should remember that he isn't dealing with e

All logs can be computed from the natural log dumbass. Actually from any log base, but mostly natural log since it's more common. Engineers are the main users of log base 10.

log base n of x = ln(x) / ln(n)

 

[hiromizu]

Originally posted by: clamum

Originally posted by: hiromizu
Almost 30 and I've forgot how to do basic addition and subtraction. I can't even do something simple like 3433+3999 without spending some time on it. It's scary.

C'mon man. Add 4000 to 3433, you can do that in your head, then subtract one.

Yea I just don't remember how to do that stuff anymore and when I try, I don't have the memory retention to remember one of the 2 sets of numbers.

 

[Schfifty Five]

Originally posted by: hiromizu

Originally posted by: clamum

Originally posted by: hiromizu
Almost 30 and I've forgot how to do basic addition and subtraction. I can't even do something simple like 3433+3999 without spending some time on it. It's scary.

C'mon man. Add 4000 to 3433, you can do that in your head, then subtract one.

Yea I just don't remember how to do that stuff anymore and when I try, I don't have the memory retention to remember one of the 2 sets of numbers.

You don't remember how to add 4000 to 3433? sad.

 

[imported_Imp]

Originally posted by: Taejin

Originally posted by: A5
The people saying to use ln() should remember that he isn't dealing with e

uhh..it doesn't matter?

Ya, that's always confused me. I almost never used 'log' for algebra or equation manipulation in college unless a graph was using a base 10 scale.

 

[hypn0tik]

Originally posted by: A5
The people saying to use ln() should remember that he isn't dealing with e

It doesn't matter. You could take the logarithm of base 7 if you wanted to and you'll still get the same answer. ln(x) and log(x) are the easiest choices to work with though because you have buttons for them on your calculator.

 

[hiromizu]

Originally posted by: Schfifty Five

Originally posted by: hiromizu

Originally posted by: clamum

Originally posted by: hiromizu
Almost 30 and I've forgot how to do basic addition and subtraction. I can't even do something simple like 3433+3999 without spending some time on it. It's scary.

C'mon man. Add 4000 to 3433, you can do that in your head, then subtract one.

Yea I just don't remember how to do that stuff anymore and when I try, I don't have the memory retention to remember one of the 2 sets of numbers.

You don't remember how to add 4000 to 3433? sad.

I mean I don't remember vividly how to do the carry over stuff. Division forget about it.