## Tag: math

392 Write a program that makes 2 + 2 = 5 2014-05-30T06:54:35.963

326 Tweetable Mathematical Art 2014-08-02T01:48:18.597

184 Mathematics is fact. Programming is not 2017-02-06T08:54:16.077

170 Programming Languages Through The Years 2015-04-06T05:54:55.230

161 Hyperprogramming: N+N, N×N, N^N all in one 2016-09-11T14:30:05.850

124 (-a) × (-a) = a × a 2017-09-26T22:25:54.850

103 One OEIS after another 2017-07-21T15:00:01.030

101 Proving that a Russian cryptographic standard is too structured 2019-06-07T05:14:03.617

96 Does the code terminate? 2016-10-21T23:02:55.273

95 Mandelbrot image in every language 2014-03-07T21:39:15.050

90 When does (x == x+2)? 2012-09-06T09:05:02.293

90 The Colors in Our Stars 2015-07-15T00:47:33.833

76 Hard code golf: Regex for divisibility by 7 2011-08-19T20:21:45.450

74 Output the sign 2016-12-20T05:49:57.610

71 Collatz Conjecture (OEIS A006577) 2013-08-01T11:22:46.980

69 Calculate the number of primes up to n 2016-02-26T19:08:02.277

69 Yo boy, must it sum 2017-10-23T15:39:46.720

68 Sum of all integers from 1 to n 2017-07-18T20:32:14.660

65 How lit is this mountain? 2017-12-22T00:01:40.210

64 9 Hole Challenge 2013-12-29T19:52:05.340

59 Find the Smoothest Number 2014-08-18T23:30:24.447

56 Little Chandler is sad. Draw him a cloud to cheer him up 2014-09-23T03:47:37.873

56 Print the N-bonacci sequence 2016-01-29T21:42:43.613

55 Superstitious hotel elevator 2016-01-08T03:06:27.220

53 Test a number for narcissism 2013-11-14T01:55:37.983

53 Program that adds all natural numbers and yields -1/12 2014-05-26T23:45:42.647

53 Dennis numbers 2.0 2016-09-30T15:44:22.307

53 Illustrate the Least Common Multiple 2017-09-25T18:40:10.173

52 Help me with differential calculus! 2014-06-17T13:32:40.747

52 Quiche Lorraine 2015-03-19T12:52:31.163

51 Alex is sometimes right 2015-10-22T18:27:21.787

51 Coprimes up to N 2016-12-26T18:00:02.387

51 The Snail in the Well 2017-07-07T05:41:35.993

51 Bringing a pair of integers to equality 2018-05-03T14:15:28.510

50 Divide a number by 3 without using *, /, +, -, % operators 2012-08-01T03:43:52.320

50 Count sums of two squares 2015-11-26T00:38:01.640

50 How many steps does it take from n to 1 by subtracting the greatest divisor? 2016-05-09T13:14:21.583

50 5, 2, 16, 3580, What comes next? 2017-02-25T04:56:30.797

50 Conway's Monster 2020-04-14T20:47:56.690

49 Too Fast, Too Fourier: FFT Code Golf 2013-08-29T23:22:29.280

49 “Disprove” Fermat's Last Theorem 2014-06-27T23:27:22.877

49 Calculate a square and a square root! 2017-04-11T18:05:26.677

49 Golf a number bigger than TREE(3) 2017-08-16T18:25:43.997

48 Greater than less than greater than something fishy 2016-09-06T21:46:52.400

48 Divisor skyline 2017-05-07T16:31:21.547

48 Golf a transcendental number 2017-05-15T02:27:27.370

48 Is my triangle right? 2017-10-23T14:33:24.553

48 Detect heat waves 2018-04-23T18:33:07.827

47 Knight on the Rim is Grim 2016-06-28T05:17:30.187

47 Draw/plot a heart graph 2017-02-13T13:10:25.730

47 Multiplicative persistence 2019-03-21T14:20:13.193

46 Multiply with restricted operations 2014-09-01T20:03:44.447

45 Draw A Sierpinski Triangle 2012-06-09T02:41:56.433

45 Hexadecimal and the Alphabet 2015-12-19T18:21:57.570

45 Calculate the difficulty of a Code Golf question 2016-08-17T12:09:05.320

45 Count without 3 2016-11-03T01:59:10.163

45 If A-B be in A-B A else B eh? 2017-03-08T22:10:15.960

45 Implement the iOS 11 Calculator 2017-10-24T09:25:53.187

45 Construct a pentagon avoiding compass use 2019-07-13T16:35:54.653

44 Reverse Polish notation 2011-01-30T01:39:22.293

44 Construct the Identity Matrix 2016-01-28T18:17:24.087

44 Is this number Loeschian? 2016-08-04T15:34:41.337

44 There can be only 1! 2016-09-11T21:16:06.140

44 f(g(x)) decreases while g(f(x)) increases 2017-04-06T11:07:39.213

44 It's Hip to be Square 2017-06-08T11:20:23.180

43 Define a function f such that f(f(n)) = -n for all non-zero integers n 2013-06-29T17:16:37.747

43 Weapons of Math Instruction 2016-06-13T06:57:47.497

43 How does math work in Anastasiya's world? 2016-08-24T09:12:09.587

42 Universal Spooky Meme Translator 2016-05-12T19:09:45.810

42 Has My Pie Been Bisected? 2016-06-04T04:29:54.907

42 Fibonacci reversed! 2016-07-17T19:46:05.547

42 Bitflip and negate 2016-09-07T18:49:16.050

42 Can this number be written in (3^x) - 1 format? 2017-01-06T14:47:54.043

42 An abundance of integers! 2017-02-21T01:01:38.620

41 Product over a range 2015-12-10T02:46:26.057

41 Greatest Common Divisor 2016-04-07T05:29:54.567

41 Goodness Giza Golf! 2016-11-16T16:41:07.030

41 Determine whether a number is 2017-friable without primes in your source code 2017-01-01T00:00:19.757

41 Moving modest minimum 2017-04-27T08:59:38.057

41 Calculate the Mean mean of two numbers 2019-03-31T07:39:59.780

41 I reverse the source code, you negate the input! 2019-09-17T19:32:25.203

41 Shift right by half a bit 2020-01-24T06:03:21.767

40 World Big Dosa​ 2015-08-03T22:12:44.567

40 The rice and chess problem 2016-05-03T14:28:23.853

40 Print a bunch of uninteresting numbers! 2016-07-07T10:25:58.573

40 Is this number a factorial? 2017-05-20T09:19:35.893

40 The Crow vs The Taxicab 2017-07-08T20:35:07.910

39 Generate Pascal's triangle 2011-10-20T18:16:53.283

39 Count sum of all digits 2014-01-15T17:39:59.620

39 XOR multiplication 2015-05-15T20:27:23.273

39 Look, up in the sky! It's a super duper array! 2016-01-19T00:00:36.077

39 Print the nth prime that contains n 2016-05-22T18:10:26.707

39 Difference of the square of the sum 2016-06-20T13:53:40.917

39 Divisibility test 2016-07-21T16:11:20.220

39 Different tasks, same characters 2017-01-08T19:28:16.977

39 11 = (1+2+3+4+5) - (1+2+3) + (6) - (4) 2017-05-13T22:00:47.643

38 The Rien Number 2016-01-06T19:34:27.637

38 Pseudofactorial 2016-06-09T20:19:47.310

38 Fibonacci-orial 2016-07-30T03:19:28.737