Nope. They ask us to calculate logs, natural logs, e^(bullshit), arcsin/cos/tan, and a bunch of other stuff high school made me rely on the calculator for.
I can do the actual calculus. Differentiation, integration, etc. etc. Where I fuck up is algebra bullshit like that.
huh fuck that, we only get sines and cosines of common angles (pi/2, pi/3, pi/4, pi/6) and e^complex number stuff. Knowing that 1/e ~=37% is expected to be known but not necessary, that sounds pretty awful.
Factoring polynomials and completing the square have become fun for me.
The stuff that made me want to die.
I got good at factoring though but I could never figure out completing the square. Also calculus was the only math I ever kind of enjoyed. I've always been good at math but I still don't care for it (except some calculus if I could remember it).
Nope. They ask us to calculate logs, natural logs, e^(bullshit), arcsin/cos/tan, and a bunch of other stuff high school made me rely on the calculator for.
I can do the actual calculus. Differentiation, integration, etc. etc. Where I fuck up is algebra bullshit like that.
huh fuck that, we only get sines and cosines of common angles (pi/2, pi/3, pi/4, pi/6) and e^complex number stuff. Knowing that 1/e ~=37% is expected to be known but not necessary, that sounds pretty awful.
Makes me hate life during exams.
How the fuck am I supposed to know arctan(57)? How?
I can complete the square for everything except when x^2 has a constant term in front of it, I just use the quadratic equation then :<
we don't have any specific classes on differential equations, but I'm doing physics so I'm going to have to deal with more differential equations than I could ever want
I can complete the square for everything except when x^2 has a constant term in front of it, I just use the quadratic equation then :<
we don't have any specific classes on differential equations, but I'm doing physics so I'm going to have to deal with more differential equations than I could ever want
Nah, notation is weird like that. I always go overkill with parentheses.
Had I done it
Would've turned out
(ln(x))^2
yeah same, especially with my calculator. It can make it kinda hard to figure what's actually multiplying what, but it's better to be right than to know what you're doing.
I already use wolframalpha more than my textbooks, haha.
I always used as many brackets as made sense in my math classes. I like being extremely clear. If I could put it in brackets or parenthesis then I did.
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and then suddenly I had to factor polynomials again
...Gonna take some math electives.
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and that I need to do it when isolating a variable
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huh fuck that, we only get sines and cosines of common angles (pi/2, pi/3, pi/4, pi/6) and e^complex number stuff. Knowing that 1/e ~=37% is expected to be known but not necessary, that sounds pretty awful.
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I got good at factoring though but I could never figure out completing the square. Also calculus was the only math I ever kind of enjoyed. I've always been good at math but I still don't care for it (except some calculus if I could remember it).
the prof was a total prick, a grouch about everything
and he'd spend half the class talking about something nonsensical and jumping topics
I think one day in class he went from
his wife's car > repairing a flat tire > the economy > libertarians > jurassic fight club
Makes me hate life during exams.
How the fuck am I supposed to know arctan(57)? How?
You want me to simplify e^(11/23)?
Fucking arbitrary numbers.
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today my teacher told us that 75% of the class got the first question wrong:
Question 1: find f'(2) when f(x) = ln(x)^2
Really?
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if it makes you feel any better I'm in high school?
Not really. Considering I could do that in my head when I took the differentiation test in high school.
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the answer is ln2 right?
because I got ln2
Nope.
Chain rule, dawg.
f(g(x))
derive
f'(g(x))*g'(x)
f(x) = ln(x)^2
f'(x) = 2ln(x)*(1/x)
f'(x) = 2ln(x)/x
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we don't have any specific classes on differential equations, but I'm doing physics so I'm going to have to deal with more differential equations than I could ever want
uh that gives Ln(2) when you substitute in x=2
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yes. but the question wanted f'(2).
so
2ln(2)/2
=
ln2
Oh.
Forgot about that part.
Then yeah, you're good.
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I forgot about the x=2 part.
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Have fun with this.
http://www.wolframalpha.com/
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Had I done it
Would've turned out
(ln(x))^2
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but like I was 98% sure I had gotten the question right anyway so I didn't care too much
yeah same, especially with my calculator. It can make it kinda hard to figure what's actually multiplying what, but it's better to be right than to know what you're doing.
I already use wolframalpha more than my textbooks, haha.
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FIFTY DOLLARS FOR THAT IPOD APP WHAT THE FUCK
Test me on the concepts, not on whether or not I'm anal about reviewing my work.
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wolf ram alpha is a genius