Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#101 Re: Dark Discussions at Cafe Infinity » Problems with discipline » 2014-08-13 13:37:11

That's really good!

Use problems from aops.com too, they have good ones.

#103 Re: Help Me ! » Please explain » 2014-08-11 23:57:20

A function can have only 1 output.

In f(x)  = √x, it will only give the positive root.

#104 Re: Introductions » Why I'm here » 2014-08-10 12:34:00

Desmos is an easy to use, free and powerful online graphing calculator.

#105 Re: Help Me ! » Exponential Equation » 2014-08-09 12:13:19

Agnishom wrote:

I do not know what is the difference between a numerical and a non-numerical solution.

One uses CAS and another doesn't? Not too sure...

#107 Re: Dark Discussions at Cafe Infinity » High Achievers, Gifted Learners, or Creative Thinkers » 2014-08-08 00:16:15

It's stupid that I used to think this for them, but softies are people who have less of an intellectual capability.

#108 Re: Dark Discussions at Cafe Infinity » High Achievers, Gifted Learners, or Creative Thinkers » 2014-08-07 13:31:42

The main reason I knew I would do science even before knowing anything was my belief that science is for intellectuals and humanities for softies (I was young...).

#109 Re: Maths Is Fun - Suggestions and Comments » The Lottery » 2014-08-07 13:13:55

Nice page, especially since you discuss the mathematics of it rather than just how lotteries work.

#110 Re: Dark Discussions at Cafe Infinity » High Achievers, Gifted Learners, or Creative Thinkers » 2014-08-07 13:09:16

Agnishom wrote:

Are you sure? I do not think there is an intersection of these

I am a gifted learner.

e.g. I'm interested and curious.

#111 Re: Dark Discussions at Cafe Infinity » High Achievers, Gifted Learners, or Creative Thinkers » 2014-08-06 23:52:44

A little of all three.

Missing "memorizes well", "knows without hard work" etc.

#112 Re: Help Me ! » Linear equation? » 2014-08-06 23:44:38

He says it's bivariate because he's thinking of it from a graphing perspective.

#113 Re: Help Me ! » Linear equation? » 2014-08-05 12:30:48

The book is wrong.

With that perspective, I can say y = 5 is an equation of infinite variables e.g. 0x, 0m, 0n, 0p etc.

#115 Re: Help Me ! » Anyone know sheets of math assignments? Or a book? » 2014-08-01 02:15:44

Yeah, unfortunately there is little time to do your own study after regular school.

#116 Re: Help Me ! » Anyone know sheets of math assignments? Or a book? » 2014-07-31 01:45:21

Whizzies wrote:
ShivamS wrote:

Spivak Calculus (available online). Do one chain rule problem from it and you're done.


Mwhuahha, Thank you! But I am more or less searching for mere assignments (: for practising my skills.

Just the exercise not the theory. I have a few math books with just exercises but, my problem is, when I have done a few I remember the answers so I kinda know where to work to (:

I just want a sheet filled with nice math and answers ofcourse! Like 2000 assignments on one page (: Would be awesome yes?

Sorry Guys, I googled just now and I think I found something (:

Sorry for opening topic, before researching!

In my experience, drilling in math by doing routine problems will get you an A+ in high school, but won't give you a mastery of the subject.

#117 Re: Help Me ! » Anyone know sheets of math assignments? Or a book? » 2014-07-30 12:22:52

Spivak Calculus (available online). Do one chain rule problem from it and you're done.

#119 Re: Help Me ! » Does this sequence converge or diverge? » 2014-07-30 06:22:18

bob bundy wrote:

oscillating: eg. 1, -1, 1, -1 ,1, -1, .............

periodic: eg.  1,2,3,5,1,2,3,5,1,2,3,5, ..........

I suppose you could argue that oscillating sequences are a special case of periodic.

Bob

I thought it was the other way around.

#120 Re: Coder's Corner » Is Anyone using BASIC Anymore? » 2014-07-27 08:00:17

When I was younger (around 12) my programming skills weren't the best, so I only participated in local and national level contests in Canada (first 2 times I didn't even make IOI). But now I do ACM ICPC in university every year.

#121 Re: Coder's Corner » Is Anyone using BASIC Anymore? » 2014-07-27 07:49:26

Oh, ok.

Anyone of you participate in any programming competitions?

#123 Re: Help Me ! » Factoring Polynomials of Higher Degree » 2014-07-27 05:38:03

In (x^3)^3 + 1^3,

a = x^3
b = 1

so it becomes (x^3 + 1)(x^6 - x^3 + 1)

#125 Re: Coder's Corner » Is Anyone using BASIC Anymore? » 2014-07-27 02:19:18

Why didn't that change to brainrot?

Pascal was one of my first too, especially for programming competitions.

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