Captcha Announcement

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Re: Captcha Announcement

Post by Bastion » Thu May 01, 2014 8:58 pm

KholdStare88 wrote:Lastly, math is universal. There's no need to translate any instructions. Right now most people 12+ (99% of our voters) can do these math problems mentally in less than 5 seconds, so this is our best option.
It took me several minutes to get an answer to my question, and I'm not even sure it was right.

Unless you tell the voter that the submission was not accepted, they won't try again, thus killing the possible valid votes and accepting the multivotes (computers can easily do math problems, while humans probably could have trouble with them).

It just seems that the ability to make a valid vote keeps getting harder, eventually turning people away because things are just taking too much time in this world where 'time is money'.
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Re: Captcha Announcement

Post by Crisu » Thu May 01, 2014 8:59 pm

Kordosa wrote:Heh, no problem. Anyone remember their elementary school math classes?

"Please Excuse My Dear Aunt Sally"
Aunt Sally wrote:Parentheses -> Exponents (and Roots) -> Multiplication -> Division -> Addition -> Subtraction
Don't spell it out quite like that. Multiplication and Division are equal. Addition and Subtraction are equal. Your linked article even says:
Wikipedia wrote:These mnemonics may be misleading when written this way, especially if the user is not aware that multiplication and division are of equal precedence, as are addition and subtraction. Using any of the above rules in the order "addition first, subtraction afterward" would also give the wrong answer to the problem 10 - 3 + 2. The correct answer is 9 (and not 5).
Instead:
Parentheses -> Exponents/Roots -> Multiplication/Division -> Addition/Subtraction
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Re: Captcha Announcement

Post by kanohistorm » Thu May 01, 2014 9:06 pm

Shmion84 wrote:maglor's original suggestion:
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xD
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spoiler alert :3
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Re: Captcha Announcement

Post by Vanilla » Thu May 01, 2014 9:06 pm

Math = Mental abuse to humankind
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Re: Captcha Announcement

Post by avery-kun » Thu May 01, 2014 9:06 pm

Crisu wrote:
Kordosa wrote:Heh, no problem. Anyone remember their elementary school math classes?

"Please Excuse My Dear Aunt Sally"
Aunt Sally wrote:Parentheses -> Exponents (and Roots) -> Multiplication -> Division -> Addition -> Subtraction
Don't spell it out quite like that. Multiplication and Division are equal. Addition and Subtraction are equal. Your linked article even says:
Wikipedia wrote:These mnemonics may be misleading when written this way, especially if the user is not aware that multiplication and division are of equal precedence, as are addition and subtraction. Using any of the above rules in the order "addition first, subtraction afterward" would also give the wrong answer to the problem 10 - 3 + 2. The correct answer is 9 (and not 5).
Instead:
Parentheses -> Exponents/Roots -> Multiplication/Division -> Addition/Subtraction
I remember when an elementary school teacher tried to tell us that they weren't equal. I knew she was wrong, but it was still upsetting.

Anyways, the problems do seem simple enough. But people who may mistype a number may not realize that their vote wasn't accepted.
kanohistorm wrote:
Shmion84 wrote:maglor's original suggestion:
Image
xD
Is that asking for the derivative? or the integral?
Last edited by avery-kun on Thu May 01, 2014 9:07 pm, edited 1 time in total.
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Re: Captcha Announcement

Post by Kordosa » Thu May 01, 2014 9:07 pm

Crisu wrote:
Kordosa wrote:Heh, no problem. Anyone remember their elementary school math classes?

"Please Excuse My Dear Aunt Sally"
Aunt Sally wrote:Parentheses -> Exponents (and Roots) -> Multiplication -> Division -> Addition -> Subtraction
Don't spell it out quite like that. Multiplication and Division are equal. Addition and Subtraction are equal. Your linked article even says:
Wikipedia wrote:These mnemonics may be misleading when written this way, especially if the user is not aware that multiplication and division are of equal precedence, as are addition and subtraction. Using any of the above rules in the order "addition first, subtraction afterward" would also give the wrong answer to the problem 10 - 3 + 2. The correct answer is 9 (and not 5).
Instead:
Parentheses -> Exponents/Roots -> Multiplication/Division -> Addition/Subtraction
Yes, I should have changed it. ^^;
Fixed now.
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Re: Captcha Announcement

Post by houreki » Thu May 01, 2014 9:21 pm

avery-kun wrote:
Crisu wrote:
Kordosa wrote:Heh, no problem. Anyone remember their elementary school math classes?

"Please Excuse My Dear Aunt Sally"
Aunt Sally wrote:Parentheses -> Exponents (and Roots) -> Multiplication -> Division -> Addition -> Subtraction
Don't spell it out quite like that. Multiplication and Division are equal. Addition and Subtraction are equal. Your linked article even says:
Wikipedia wrote:These mnemonics may be misleading when written this way, especially if the user is not aware that multiplication and division are of equal precedence, as are addition and subtraction. Using any of the above rules in the order "addition first, subtraction afterward" would also give the wrong answer to the problem 10 - 3 + 2. The correct answer is 9 (and not 5).
Instead:
Parentheses -> Exponents/Roots -> Multiplication/Division -> Addition/Subtraction
I remember when an elementary school teacher tried to tell us that they weren't equal. I knew she was wrong, but it was still upsetting.

Anyways, the problems do seem simple enough. But people who may mistype a number may not realize that their vote wasn't accepted.
kanohistorm wrote:
Shmion84 wrote:maglor's original suggestion:
Image
xD
Is that asking for the derivative? or the integral?
I'm studying that now and I think that symbol means the derivative.
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Re: Captcha Announcement

Post by Bastion » Thu May 01, 2014 10:09 pm

My family used to eat math for breakfast. Addition and subtraction are not equal, subtraction is just adding a negative number, similar situation between multiplication and division, they are intrinsically linked, thus putting one above the other is wrong :p
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Re: Captcha Announcement

Post by blaZofgold » Thu May 01, 2014 11:35 pm

Shmion84 wrote:maglor's original suggestion:
Image
Derivative of sin(x) is cos(x), derivative of cos(x) is -sin(x)
The scalar '3' is brought out of the trig functions upon executing the derivative, the constants are dropped

d/dx[7 * 3 * cos(3x) - 5 * 3 * sin(3x)] where x = pi

Plug n Chug

= 21 cos (3 pi) - 15 sin (3 pi)
= 21 * 0 - 15 * 1
= -15
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Re: Captcha Announcement

Post by Kordosa » Fri May 02, 2014 12:06 am

blaZofgold wrote:
Shmion84 wrote:maglor's original suggestion:
Image
Derivative of sin(x) is cos(x), derivative of cos(x) is -sin(x)
The scalar '3' is brought out of the trig functions upon executing the derivative, the constants are dropped

d/dx[7 * 3 * cos(3x) - 5 * 3 * sin(3x)] where x = pi

Plug n Chug

= 21 cos (3 pi) - 15 sin (3 pi)
= 21 * 0 - 15 * 1
= -15
I didn't get the opportunity to take any calculus courses until college, and even then, I did horrible in them, so I sort of envy you.
Trig was loads of fun, though.
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Re: Captcha Announcement

Post by Chocola » Fri May 02, 2014 12:10 am

Shmion84 wrote:maglor's original suggestion:
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Why is this a partial derivative anyways? There's only one variable that varies, so can't we just use a total derivative?
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Re: Captcha Announcement

Post by Momento10 » Fri May 02, 2014 12:35 am

Alright, statistics class first, and math class now. I might as well learn all my math and statistics class here instead of what i get in school.
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Re: Captcha Announcement

Post by Chocola » Fri May 02, 2014 12:47 am

Momento10 wrote:Alright, statistics class first, and math class now. I might as well learn all my math and statistics class here instead of what i get in school.
Well, we were considering this for our captcha:

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Not really, but we still made it as a joke.
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Re: Captcha Announcement

Post by blaZofgold » Fri May 02, 2014 2:06 am

_._ is the reaction I have to that
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Re: Captcha Announcement

Post by CureRainbow » Fri May 02, 2014 2:13 am

Don't remind me about the torture that was of Calculus and Chemistry guys ;_;
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Re: Captcha Announcement

Post by avery-kun » Fri May 02, 2014 2:15 am

KholdStare88 wrote:
Momento10 wrote:Alright, statistics class first, and math class now. I might as well learn all my math and statistics class here instead of what i get in school.
Well, we were considering this for our captcha:

Image

Not really, but we still made it as a joke.
Holy.... 2?
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Re: Captcha Announcement

Post by Just » Fri May 02, 2014 3:03 am

KholdStare88 wrote:
Momento10 wrote:Alright, statistics class first, and math class now. I might as well learn all my math and statistics class here instead of what i get in school.
Well, we were considering this for our captcha:

Image

Not really, but we still made it as a joke.
I want the maths captcha. Please, give me the maths captcha.
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Re: Captcha Announcement

Post by Jiharo » Fri May 02, 2014 3:28 am

Just wrote:
KholdStare88 wrote:
Momento10 wrote:Alright, statistics class first, and math class now. I might as well learn all my math and statistics class here instead of what i get in school.
Well, we were considering this for our captcha:

Image

Not really, but we still made it as a joke.
I want the maths captcha. Please, give me the maths captcha.
I like the chem one.
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Re: Captcha Announcement

Post by RegalStar » Fri May 02, 2014 3:32 am

Image

Seriously, why do people have trouble with this thing
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Re: Captcha Announcement

Post by avery-kun » Fri May 02, 2014 3:43 am

RegalStar wrote:Image

Seriously, why do people have trouble with this thing
We can't all be chemist like you.
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