The four fours.

[Amram]

agreed on ln, and especially on rounding. So many of these are much too easy if you can just hack off what doesn't fit with a floor/ceil or round down/up.

So im adding in a new rule to prevent that. ln, due to its odd ability to let you coerce any value you want to have from just that alone, and rounding from the fact that it replaces the value with one that approximates the value but isn't precisely the value, are both now listed as disallowed.

And since I just kicked out ln, which invalidates our #35, and I managed to figure that one out, have a new 35 that doesn't use ln, or floor.

35 = 4! + 44/4

And since its next up, have 46 too:

46 = 44 + 4 - √4

Edited December 20, 2013 by Amram
replaced my habitual sqrt with √

[Chrisd857]

47 = 4! + 4! - 4/4

[Amram]

48 = 4! + 4! * 4/4

[Superfluous J]

"What do you get when you multiply six by seven?" -- HGTTG

Actually that's six by nine...

[vexx32]

49 = 4! + 4! + 4/4

[Amram]

That's not 4!, it's !4 (subfactorial)

So I finally got around to investigating what the hell a subfactorial is, and how it works, and now all I have to say on the matter is that its a deranged concept.

That and Wolfram-Alpha.com is full of awesomeness.

41 = !4 + (4*4)*√4

37 = Γ(4)*Γ(4) + (4/4)

39 = Γ(4) * 4 + (Γ(4) Choose 4)

Any of the answers in here that are formatted correctly should spit out true if they got it right. Not that i understand how the Choose function works yet, lol. Btw, WolframAlpha doesn't like C, seeing it as a variable and treating it as such, but I found it does work out as expected with the full word. Even explains it to you if you want it to. it also doesn't like Γ4 giving a completely unexpected result, it does like Γ(4).

the obvious given the lead up from the last few numbers:

50 = 4! + 4! + 4 - √4

less obvious:

50 = !4 * (4 + √4) - 4

I don't even:

50 = !4 * Γ(4) - √4 * √4

Edited December 20, 2013 by Amram
felt like it.

[Mars90000000]

51 = 44 + !4 - √4

[Amram]

almost feels like cheating:

52 = 4! + 4! + √4 + √4

[Chrisd857]

53 = !4 * Γ(4) - 4/4

[Amram]

54 = 4! + 4! + √4 + 4

[Superfluous J]

55 = !4 * Γ(4) + 4/4

(I have no idea what !4 and Γ(4) are, but apparently they multiply together to be 54....)

[Chrisd857]

56 = 4! + 4! + 4 + 4

[Amram]

57 = (Γ(4 + √4) - Γ(4)) / √4

That one was tricky. I could easily hit 58 or 56 with one four left, but I needed one more to hit 57, lol.

[Chrisd857]

58 = 4! + 4! + Γ(4) + 4

[Amram]

59 = 4! + 4! + !4 + √4

[RadHazard]

60 = (Γ(4)! /Γ(4)) / 4) * √(4)

EDIT:

60 = (Γ(4)! / Γ(4)) / (4 / √(4)) It's the same thing, but it has nicer symmetry

Edited December 21, 2013 by RadHazard

[RadHazard]

61 = 4! + 4! + 4 + !4

[Amram]

62 = Γ(4) * 4 / .4 + √4

Btw, updated the rules. I just assumed there wouldn't be double posting so i wrote #8 to avoid one person supplying a bunch in one shot, we now have #9 as well to cover what #8 missed.

Apologies, it seems I suck at clarity, but I do improve over iterations.

Edited December 21, 2013 by Amram

[Mars90000000]

63 = !4*!4 - 4! + Γ(4)

[Chrisd857]

64 = Γ(Γ(4)) / √4 + √4 + √4

[Amram]

65 = 4! / .4 + √4 / .4

[Chrisd857]

66 = (Γ(Γ(4)) + 4) / √4 + 4

[Mars90000000]

67 = (Γ(Γ(4)) - 44 - Γ(4)

[Chrisd857]

67 = (Γ(Γ(4)) - 44 - Γ(4)

That equals 70.

67 = (Γ(Γ(4)) ) / √4 + Γ(4) + !(√4)

[Amram]

hey, an easy one, about time, lol.

68 = 4 * 4 * 4 + 4