192 replies to this topic

[DannyMc252]

Ack, sorry! Im thinking adding, not multiplying.

(ax+3)(x+a)

ax^2+a^2x+3x+3a
More or less as Havell said.

[DakaSha]

i think math is really neat but the most complex thing i ever learned was the basics of algebra... you know the x's, y's, ()'s and doing the multiplication and division before the other two

i was good in math (for my age and knowledge back then) but i was terrible at doing the stuff in my head and always needed a calculator.

oh well. mabye some day ill be abducted by aliens and theyll implant some math thingie in my head

[A. J. Raffles]

DakaSha, on Nov 11 2005, 05:23 AM, said:

i think math is really neat but the most complex thing i ever learned was the basics of algebra... you know the x's, y's, ()'s and doing the multiplication and division before the other two

i was good in math (for my age and knowledge back then) but i was terrible at doing the stuff in my head and always needed a calculator.

oh well. mabye some day ill be abducted by aliens and theyll implant some math thingie in my head

What you need is a Schriebman port.

[MdaG]

Ok, todays math question!: What number does the following sum converge to?

1 + 1 + 1/2! + 1/3! + 1/4! + ...

n! = n*(n-1)*(n-2)...*3*2*1

*edit*
I don't care if you don't care  

[Qbix]

e

[DakaSha]

A. J. Raffles, on Nov 11 2005, 06:15 AM, said:

DakaSha, on Nov 11 2005, 05:23 AM, said:

i think math is really neat but the most complex thing i ever learned was the basics of algebra... you know the x's, y's, ()'s and doing the multiplication and division before the other two

i was good in math (for my age and knowledge back then) but i was terrible at doing the stuff in my head and always needed a calculator.

oh well. mabye some day ill be abducted by aliens and theyll implant some math thingie in my head

What you need is a Schriebman port.

a what port?

[Shrek]

MdaG, on Nov 11 2005, 11:49 AM, said:

Ok, todays math question!: What number does the following sum converge to?

1 + 1 + 1/2! + 1/3! + 1/4! + ...

n! = n*(n-1)*(n-2)...*3*2*1

*edit*
I don't care if you don't care  

I didn' t know you could use non-integer number as n in the n!    

[A. J. Raffles]

DakaSha, on Nov 11 2005, 11:08 AM, said:

A. J. Raffles, on Nov 11 2005, 06:15 AM, said:

DakaSha, on Nov 11 2005, 05:23 AM, said:

i think math is really neat but the most complex thing i ever learned was the basics of algebra... you know the x's, y's, ()'s and doing the multiplication and division before the other two

i was good in math (for my age and knowledge back then) but i was terrible at doing the stuff in my head and always needed a calculator.

oh well. mabye some day ill be abducted by aliens and theyll implant some math thingie in my head

What you need is a Schriebman port.

a what port?

   It's from Beneath A Steel Sky. A Schriebman port is a hole in the head.

[MdaG]

Qbix, on Nov 11 2005, 12:53 PM, said:

e

Too easy huh?  

Shrek said:

I didn' t know you could use non-integer number as n in the n!

n is an integer. 1/n! not (1/n)!

[BeefontheBone]

Although factorials (!) are defined on non-integers - technically, the definition above only applies to natural numbers, since it'd be infinite for any negative number.

[Shrek]

hahaha... you guys are right... but that's my fault, you see it's been about 10 years since i touched a maths book for the last time   oh, good old school days, sometimes I miss them

[MdaG]

Another question:

The independent events A, B and C have 0.1, 0.4 and 0.7 probability to occur.

a ) What's the probability that at least one of the events will occur?
b ) What's the probability that exacly two events occur?

[A. J. Raffles]

Errrm.... pi for both?

[Qbix]

a 1.2
b 0.2952

[MdaG]

Qbix, on Nov 14 2005, 10:46 PM, said:

a 1.2
b 0.2952

Incorrect (how'd you come to that conclusion?)

Hint: A probability is a number in the interval [0, 1]

Quote

Errrm.... pi for both?

C'mon Raffles, you can do it!