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

You are not logged in.

#3 Re: Help Me ! » Sequence » 2015-03-25 12:45:21

bob bundy wrote:

hi Stefy,

Thanks.  But I'm getting strange results from the second solution to the quadratic.  And I've tried two more examples with the same happening again.  I'm just trying to make sense of all my paperwork; then I'll post what I've found.

Bob

I didn't have to solve any quadratics...

#8 Re: Help Me ! » Sequence » 2015-03-24 12:06:34

Hi Bob

I'm getting just one solution but it has nothing to do with complex numbers.

#11 Re: Guestbook » Linear Interpolation of FP1 Formula - Parallel Thread » 2015-03-24 04:09:41

Ah, you mean from his point of view. Yes, many think like that and many do not agree. It's a choice.

#13 Re: Puzzles and Games » Mate in 15...or less? » 2015-03-24 03:36:40

Was "White up" referring to the direction White's pawn are moving or the part of the board White's pieces occupy at the beginning?

#16 Re: Puzzles and Games » Mate in 15...or less? » 2015-03-23 23:54:07

Are you sure it's not white down black up. Cause if it's what you said, Black is already mated.

#17 Re: Puzzles and Games » Mate in three? » 2015-03-23 23:45:50

None of those is an optimal move, so it would never happen.

#18 Re: Help Me ! » Having trouble with this equation. » 2015-03-23 13:05:17

The second line is incorrect, because

What you can do is write

as
and take out the common factor of
out of both terms.

#19 Re: Puzzles and Games » Mate in three? » 2015-03-23 12:58:53

Um, phro, I don't think the black king can go to d5.

#20 Re: Puzzles and Games » Mate in three? » 2015-03-23 04:38:52

So, all the variations end up with a mate?

#21 Re: Puzzles and Games » Mate in three? » 2015-03-23 03:16:52

Why wouldn't the king go to c4 in the second move in the first case?

#22 Re: Puzzles and Games » Mate in three? » 2015-03-23 01:11:59

What if black goes Tc5 on the first move?

#23 Re: Puzzles and Games » Sum of fractions which equals 1 » 2015-03-20 02:06:45

It's something like logic programming except more specialized. And it seems it's often mixed with another paradigm (functional, imperative,...). The two languages mentioned on W are Oz, which is functional, and Kaleidoscope, which is imperative.

Oz seems really interresting.

#24 Re: Help Me ! » permutation and combination » 2015-03-16 10:54:31

Agnishom wrote:

Parallel is for lines/rays.

When I see (5,6,7), I think of a point

A vector can be parallel to a plane.

Also, the definition I gave is a bit more precise as a vector cannot lie in a plane.

#25 Re: Help Me ! » permutation and combination » 2015-03-14 05:15:03

Vectors are coplanar if there is a plane they are all parallel to.

Board footer

Powered by FluxBB