/sci/ - Science & Math

also. when it comes to mains AC plugs, i've always wondered why it matters to designate one wire as neutral and one wire as live with the fuse? with AC are the wires not "switching roles" (insert your localised freq here) times a second?

>there used to be more than just one world government

Would someone be able to explain to me in layman's terms what logarithms are and what they are used for please? When I did math in school we had the log book of logarithms, sine and tangents and at the time I didn't question it, I just took it as the tools to solve the various problems. I got curious recently though and looked up the definition on wikipedia and it made no sense. it said they were used before calculators to simplify equations but the example it gives is:
"the logarithm of 1000 to base 10 is 3, because 10 to the power of 3 is 1000: 10^3 = 1000. The logarithm of x to the base b is written logb(x) such as log10(1000) = 3"
mfw I read this
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who do you think contributed most humananity's knowledge of cells?

The problem is students memorize procedures without fully understanding the mathematics, he notes.

“Students who have learned to memorize symbols and who have a limited understanding of the equal sign will tend to solve problems such as 4+3+2=( )+2 by adding the numbers on the left, and placing it in the parentheses, then add those terms and create another equal sign with the new answer,” he explains. “So the work would look like 4+3+2=(9)+2=11.

"This response has been called a running equal sign—similar to how a calculator might work when the numbers and equal sign are entered as they appear in the sentence,” he explains. “However, this understanding is incorrect. The correct solution makes both sides equal. So the understanding should be 4+3+2=(7)+2. Now both sides of the equal sign equal 9."

http://tamunews.tamu.edu/2010/08/10/students%E2%80%99-understanding-of-the-equal-sign-not-equal/

>>1859176

Has anyone forgotten an area of math/(some course in your major) that you never use beyond a one term class? I forgotten various integration algorithms such as inverse trig, trig, partial fractions, etc. I never use it in my upper level math courses such as Algebra, Set Theory, Geometry, proof classes etc. I knew it at one point, but no longer

NC State
Mathematics
Junior Year
Plans: Grad school for either Mathematics, CS, or Law.
We should have won today's game.

Post in this thread if you don't know the difference between general relativity and special relativity.