Boyah Forums

 akudood;

why is that second option even there
why is this even a poll
why
akudood;

yes, join

JOIN OR DIE

who

give hiro the link to let his cousin join, snorkill

Quote from: Pancake Persona on May 11, 2012, 02:54:05 PM
who

Quote from: Dovydas on May 11, 2012, 03:04:12 PM
give hiro the link to let his cousin join, snorkill

It needs to be initiated with a session ID

go here http://boyah.net/forums/ and click Register, it's open right now  n_u

Is that your cousin from the AMA thread?

Quote from: Zidone on May 11, 2012, 03:13:08 PM
Is that your cousin from the AMA thread?

yes  giggle;

i'm so excited

he needs to approved

approved doodella;

YES YES YES

boyah is saved

wait grants cousin and ikandis former gf cousin both joined?

I will dominate all New Boyagers.

no one was excited when i got one new semiactive member to join  baddood;

also cool, i hope he posts soon

Those antibot measures are really confusing I was pretty sure that 5 - 2 + 1 = 2 but it kept saying that I was wrong.

Quote from: Amethyst on May 12, 2012, 06:22:06 AM
Those antibot measures are really confusing I was pretty sure that 5 - 2 + 1 = 2 but it kept saying that I was wrong.

rofl ifeelbetter;

Quote from: Amethyst on May 12, 2012, 06:22:06 AM
Those antibot measures are really confusing I was pretty sure that 5 - 2 + 1 = 2 but it kept saying that I was wrong.

(5-2) + 1

Not 5-(2+1)

akudood;

Quote from: N o t S i d on May 11, 2012, 09:32:41 PM
no one was excited when i got one new semiactive member to join  baddood;

also cool, i hope he posts soon

yes we were :(

Quote from: Khadafi on May 12, 2012, 06:59:01 AM
(5-2) + 1

Not 5-(2+1)

akudood;

But addition is always done first.   doodhuh;

Quote from: FAMY2 on May 12, 2012, 10:01:03 AM
But addition is always done first.   doodhuh;

what no

additions and substractions are on the same level of priority (the last one)

Quote from: Thyme on May 12, 2012, 10:04:04 AM
what no

additions and substractions are on the same level of priority (the last one)

It surprises me how often I have to explain exactly this to people

I guess the mnemonic "PEMDAS" makes people think "MDAS" are exactly in that order

They aren't in that order? :s

Quote from: Amethyst on May 12, 2012, 12:41:58 PM
They aren't in that order? :s

Addition and subtraction share the same priority and are evaluated left-to-right
Multiplication and division share the same priority and are evaluated left-to-right: "6 / 2 * 3" is equal to 9, not 1

and "PEMDAS" is also an oversimplification that excludes some things like negative sign, which has lower priority than exponentiation, making -4² = -16 although (-4)² = +16

Quote from: bluaki on May 12, 2012, 12:52:22 PM
like negative sign, which has lower priority than exponentiation, making -4² = -16 although (-4)² = +16

oh wow, i had forgotten about that one O_0

Quote from: Thyme on May 12, 2012, 12:54:49 PM
oh wow, i had forgotten about that one O_0

I once programmed a math calculator/parser and that particular rule took extra effort to evaluate correctly

I even implemented non-parenthesized functions, which are very rarely supported by those kind of programs and have somewhat unique priority like in "sqrt 8*2^3 + 1" n_u

Also, unlike the other operations, exponentiation is evaluated right-to-left, so "2^3^2" usually should be evaluated like "2^(3^2)" (512) rather than "(2^3)^2" (64)

Quote from: bluaki on May 12, 2012, 12:52:22 PM
Addition and subtraction share the same priority and are evaluated left-to-right
Multiplication and division share the same priority and are evaluated left-to-right: "6 / 2 * 3" is equal to 9, not 1

and "PEMDAS" is also an oversimplification that excludes some things like negative sign, which has lower priority than exponentiation, making -4² = -16 although (-4)² = +16

so after E everything has the same priority?

Quote from: Amethyst on May 12, 2012, 01:17:47 PM
so after E everything has the same priority?

multiply and divide are of equal priority and addition and subtraction are of equal priority, but m/d come before a/s

thread mathematically ruined

the one person who voted no (i won't name names) has been banned nyandood;

Quote from: Amethyst on May 12, 2012, 01:17:47 PM
so after E everything has the same priority?

No, they're in two pairs of multiplication/division and addition/subtraction. Multiplication and division have the same priority, which is higher than the priority shared by addition and subtraction.

For an example:
"2 + 6 / 2 * 2 / 3 - 4 + 2" is equivalent to (with colored matching parentheses for readability)
"((2 + (((6 / 2) * 2) / 3)) - 4) + 2"
which evaluates as
"((2 + ((3 * 2) / 3)) - 4) + 2"
"((2 + (6 / 3)) - 4) + 2"
"((2 + 2) - 4) + 2"
"(4 - 4) + 2"
"0 + 2"
2

Quote from: N o t S i d on May 12, 2012, 01:23:16 PM
thread mathematically ruined

:3

Quote from: Thyme on May 12, 2012, 12:54:49 PM
oh wow, i had forgotten about that one O_0

If you think about a negative sign as just being a "0 -," ie -4 becomes 0 - 4, then it's easy to remember.

Quote from: Sudoroodo on May 12, 2012, 01:24:35 PM
the one person who voted no (i won't name names) has been banned nyandood;

You're destroying post potential.

Quote from: Colonel Cold on the Cob on May 12, 2012, 01:38:40 PM
If you think about a negative sign as just being a "0 -," ie -4 becomes 0 - 4, then it's easy to remember.

It's more accurate to consider it equivalent to "(-1) * " because instances like "4 * -2" can happen and, directly replacing with "0 -", would produce "4 * 0 - 2"

make that two nyandood;

Quote from: Sudoroodo on May 12, 2012, 01:44:54 PM
make that two nyandood;

5thgrade;

Quote from: bluaki on May 12, 2012, 01:33:23 PM
No, they're in two pairs of multiplication/division and addition/subtraction. Multiplication and division have the same priority, which is higher than the priority shared by addition and subtraction.

For an example:
"2 + 6 / 2 * 2 / 3 - 4 + 2" is equivalent to (with colored matching parentheses for readability)
"((2 + (((6 / 2) * 2) / 3)) - 4) + 2"
which evaluates as
"((2 + ((3 * 2) / 3)) - 4) + 2"
"((2 + (6 / 3)) - 4) + 2"
"((2 + 2) - 4) + 2"
"(4 - 4) + 2"
"0 + 2"
2

sudoroodo's explanation was enough goonish
thanks though

Quote from: bluaki on May 12, 2012, 01:44:49 PM
It's more accurate to consider it equivalent to "(-1) * " because instances like "4 * -2" can happen and, directly replacing with "0 -", would produce "4 * 0 - 2"

what I was going to say 5thgrade;

This thread reminded me that factorials are rtl.

holy fuck....my mind has been sleeping (and getting stoned) the last 4 years, I don't even want to look at that...and i used to be good at math. saddood;

Quote from: Master Shake on May 13, 2012, 11:20:30 PM
holy fuck....my mind has been sleeping (and getting stoned) the last 4 years, I don't even want to look at that...and i used to be good at math. saddood;

That's sixth grade level math, son. Wake your brain up.

PROOF that cannabis is addictive and destroys brain cells

Quote from: Sudoroodo on May 13, 2012, 11:24:22 PM
PROOF that cannabis is addictive and destroys brain cells

not really i got 4 because i'm not an idiot.

What? I thought everything destroys brain cells. Your brain cells are dying right now all on their own.