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

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#1 Re: Help Me ! » 3d geometry? » Today 07:53:41

No problem. smile

The volume is now easy to compute.

#2 Re: Coder's Corner » Is Anyone using BASIC Anymore? » Today 07:51:19

I participated in the competition organized by our country, but that's pretty much it.

#3 Re: Coder's Corner » Is Anyone using BASIC Anymore? » Today 07:47:54

Hi Agnishom

Yes.

Hi Shivam

Yeah, bobbym changed it manually.

#5 Re: Coder's Corner » Is Anyone using BASIC Anymore? » Today 03:02:27

Because some words contain swear words without being swear words themselves.

#6 Re: Coder's Corner » Is Anyone using BASIC Anymore? » Today 02:59:29

He changed it manually.

You cannot regex, because you don't really want the filter to always check the words.

#7 Re: Coder's Corner » Is Anyone using BASIC Anymore? » Today 02:42:14

Because the filter doesn't check parts of words.

#9 Re: Help Me ! » Square roots » Today 02:10:39

bobbym wrote:

You got that from this?

Yep.

#10 Re: Coder's Corner » Is Anyone using BASIC Anymore? » Today 02:07:56

The first language I learned was Pascal.

ShivamS wrote:
Tangram wrote:

But really, any language that Turing complete is functionally equivalent to any other.

Not really.

Agreed. There's a reason no real programmers use Brainmath.

#12 Re: Help Me ! » Square roots » Today 01:51:20

bobbym wrote:

Is it a fourth degree equation?

Yes, it is.

#13 Re: Help Me ! » Square roots » Today 01:40:31

Cardano could solve this by hand.

#14 Re: Dark Discussions at Cafe Infinity » Which are you closest to? » Today 01:29:49

I think I'm something between the first two.

What about you, bobbym?

#16 Re: Help Me ! » Medians and Altitudes » Yesterday 08:27:40

All of the edges of XX'YY' are midsegments of respective triangles made by diagonals of the larger quadrilateral.

#17 Re: Help Me ! » Medians and Altitudes » Yesterday 06:02:59

Well, the opposite sides are equal and parallel...

#18 Re: Help Me ! » Medians and Altitudes » Yesterday 03:00:12

Haven't checked your new solution yet, but XX'YY' is not an isosceles trapezium, it's a parallelogram. smile

EDIT: Actually, yes, it's both, but calling it a parallelogram is more restrictive. smile

EDIT #2: And, yes, it is also a rectangle smile

#19 Re: Jokes » Math Pick-up Lines » Yesterday 01:02:27

It works in Chrome for me, too.

#20 Re: Help Me ! » Medians and Altitudes » Yesterday 00:47:49

Hi Bob

How would you use Pythag on YY'Z? It's not a right triangle.

#22 Re: Help Me ! » Algebra Help » 2014-07-25 23:49:10

Hi moore1967

Welcome to the forum! smile

What is your favourite colour?

#23 Re: Help Me ! » trigonometry#2 » 2014-07-25 23:47:47

Multiply the second equation by yz then subtract itbfrom the third equation.

#25 Re: Help Me ! » trigonometry#2 » 2014-07-24 06:36:37

If there are x0, y0 and z0 for those, then those are the only ones, because sin(3 theta)=cos(3 theta)

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