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51 – 100 of 233

Problem 1826. Find vampire numbers

Created by: Andrew Newell

Tags factors, number theory

1

Solution

138

Size

1

Solution

138

Size

Problem 1804. Fangs of a vampire number

Created by: Andrew Newell

Tags factors, number theory

3

Solutions

87

Size

3

Solutions

87

Size

Problem 8057. (Linear) Recurrence Equations - Generalised Fibonacci-like sequences

Created by: Jan Orwat

Tags sequences, fibonacci, recurrence

1

Solution

192

Size

1

Solution

192

Size

Problem 2674. Generalised Hamming Number

Created by: Jean-Marie Sainthillier

Tags hamming

1

Solution

69

Size

1

Solution

69

Size

Problem 44309. Pi Digit Probability

Created by: Mehmet OZC

Tags pi, string manipulation, histogram

4

Solutions

45

Size

4

Solutions

45

Size

Problem 198. Are you in or are you out?

Created by: the cyclist

Tags polygon, basics, poor_test_suite

2

Solutions

120

Size

2

Solutions

120

Size

Problem 336. Similar Triangles - find the height of the tree

Created by: Bruce Raine

Tags multiplication, arithmetic, geometry

1

Solution

20

Size

1

Solution

20

Size

Problem 417. Covering area

Created by: Nikolai

Tags area, triangulation, geometrics

3

Solutions

40

Size

3

Solutions

40

Size

Problem 330. Circumscribed circles

Created by: Alan Chalker

Tags geometry

1

Solution

51

Size

1

Solution

51

Size

Problem 392. Clock Hand Angle 1

Created by: @bmtran (Bryant Tran)

Tags math, clocks, fractions

2

Solutions

84

Size

2

Solutions

84

Size

Problem 635. Angle between Two Vectors

Created by: Richard Zapor

Tags vectors, geometry, vector calculus

2

Solutions

25

Size

2

Solutions

25

Size

Problem 636. Spherical radius given four points

Created by: Richard Zapor

Tags geometry linear algebra, non-linear

6

Solutions

247

Size

6

Solutions

247

Size

Problem 190. Great Circle Distance

Created by: @bmtran (Bryant Tran)

Tags distance, great circle, azimuth

2

Solutions

38

Size

2

Solutions

38

Size

Problem 637. Volume of a Parallelepiped

Created by: Richard Zapor

Tags vector operators dot cross

2

Solutions

25

Size

2

Solutions

25

Size

Problem 768. Are all the three given point in the same line?

Created by: Reza Ahmadzadeh

Tags geometry, algebra

1

Solution

74

Size

1

Solution

74

Size

Problem 450. What is the distance from point P(x,y) to the line Ax + By + C = 0?

Created by: Bruce Raine

Tags distance, pythagoras, orthogonal

1

Solution

34

Size

1

Solution

34

Size

Problem 191. Proper Factors

Created by: @bmtran (Bryant Tran)

Tags proper factors

1

Solution

36

Size

1

Solution

36

Size

Problem 365. Numbers with prime factors 2, 3 and 5.

Created by: elias GR

Tags primes, factors

3

Solutions

129

Size

3

Solutions

129

Size

Problem 1066. Multiples of a Number in a Given Range

Created by: @bmtran (Bryant Tran)

Tags factor, plus15, colon

1

Solution

38

Size

1

Solution

38

Size

Problem 43269. Get all prime factors

Created by: Jamil Kasan

Tags primes, factorization

2

Solutions

15

Size

2

Solutions

15

Size

Problem 148. Factorize THIS, buddy

Created by: the cyclist

Tags easy prime, basic matlab

3

Solutions

17

Size

3

Solutions

17

Size

Problem 554. Is the Point in a Circle?

Created by: Kuifeng

Tags circle, poor_test_suite, poor_problem_statement

7

Solutions

69

Size

7

Solutions

69

Size

Problem 381. Angle between two vectors

Created by: Aurelien Queffurust

Tags vectors, geometry, angle

2

Solutions

31

Size

2

Solutions

31

Size

Problem 2910. Mersenne Primes vs. All Primes

Created by: goc3

Tags primes, comparison, powers

4

Solutions

90

Size

4

Solutions

90

Size

Problem 1095. Circular Primes (based on Project Euler, problem 35)

Created by: James

Tags primes, projecteuler, circular reasoning

1

Solution

95

Size

1

Solution

95

Size

Problem 896. Sophie Germain prime

Created by: Aurelien Queffurust

Tags prime, primes, sophie germain

1

Solution

32

Size

1

Solution

32

Size

Problem 981. Find nearest prime number less than input number

Created by: Reza Ahmadzadeh

Tags math, prime numbers

1

Solution

45

Size

1

Solution

45

Size

Problem 525. Mersenne Primes

Created by: Drew Weymouth

Tags math, prime, integers

3

Solutions

42

Size

3

Solutions

42

Size

Problem 1567. Make a vector of prime numbers

Created by: Marek Kuklis

Tags matlab

2

Solutions

41

Size

2

Solutions

41

Size

Problem 1096. Largest Twin Primes

Created by: Des Mc Manus

Tags primes

4

Solutions

52

Size

4

Solutions

52

Size

Problem 1722. Find the next prime number

Created by: Chris E.

Tags prime

1

Solution

45

Size

1

Solution

45

Size

Problem 83. Prime factor digits

Created by: Cody Team

Tags primes

2

Solutions

55

Size

2

Solutions

55

Size

Problem 2423. Integer Sequence - II : New Fibonacci

Created by: rifat

Tags fibonacci, integer sequence

2

Solutions

42

Size

2

Solutions

42

Size

Problem 752. Is X a Fibonacci Matrix?

Created by: Sean de Wolski

Tags fibonacci, Tic...Toc...

7

Solutions

129

Size

7

Solutions

129

Size

Problem 42340. Fibonacci Decomposition

Created by: Ned Gulley

Tags fibonacci

3

Solutions

94

Size

3

Solutions

94

Size

Problem 1925. Smith numbers

Created by: Sky Sartorius

Tags sum, factors

5

Solutions

98

Size

5

Solutions

98

Size

Problem 44481. How many Fibonacci numbers?

Created by: Bob Tivnan

Tags integers, fibonacci, #easy

3

Solutions

63

Size

3

Solutions

63

Size

Problem 1946. Fibonacci-Sum of Squares

Created by: Chris Cleveland

Tags fibonacci, sum of squares

1

Solution

43

Size

1

Solution

43

Size

Problem 44060. Volume Pillar

Created by: Erik Luiten

Tags geometry, fun, volume

1

Solution

18

Size

1

Solution

18

Size

Problem 43215. Convert radians to degrees

Created by: Jamil Kasan

Tags function, conversion, basics

1

Solution

15

Size

1

Solution

15

Size

Problem 44660. Perimeter of a semicircle

Created by: Srishti Saha

Tags matlab 101, easy, matlab

1

Solution

17

Size

1

Solution

17

Size

Problem 44273. Given a square and a circle, please decide whether the square covers more area.

Created by: AMITAVA BISWAS

Tags geometry, check_test_Suite

1

Solution

23

Size

1

Solution

23

Size

Problem 2908. Approximation of Pi

Created by: goc3

Tags pi, infinite series, approximation

2

Solutions

49

Size

2

Solutions

49

Size

Problem 953. Pi Estimate 1

Created by: Ed Hall

Tags for loop

3

Solutions

45

Size

3

Solutions

45

Size

Problem 43298. Calculate area of sector

Created by: Jang geun Choi

Tags math, easy, matlab

1

Solution

17

Size

1

Solution

17

Size

Problem 833. Find third Side of a right triangle given hypotenuse and a side. No * - or other functions allowed

Created by: Richard Zapor

Tags right-angled triangles, non standard methods, right-angle triangles

4

Solutions

22

Size

4

Solutions

22

Size

Problem 164. Right and wrong

Created by: the cyclist

Tags triangle

1

Solution

74

Size

1

Solution

74

Size

Problem 3092. Return fibonacci sequence do not use loop and condition

Created by: Binbin Qi

Tags loop, fibonacci, condition

1

Solution

43

Size

1

Solution

43

Size

Problem 43016. Find the next Fibonacci number

Created by: Steven Van Vaerenbergh

Tags fibonacci

1

Solution

80

Size

1

Solution

80

Size

Problem 44311. Number of Even Elements in Fibonacci Sequence

Created by: Mehmet OZC

Tags fibonacci, cody5, big number

2

Solutions

14

Size

2

Solutions

14

Size

51 – 100 of 233