the cyclist

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Research Scientist at PatientsLikeMe.com; MATLAB evangelist.

Professional Interests

Predictive modeling, statistics

Rank 15
Score 2645
233 problems solved 21 problems created 10 problems liked 3 solutions liked
30Solvers

Convert a vector into a number

Created by Doug Hull

Tags

ml101

Problem Group

Community
  • Solved
32Solvers

Replace May with April

Created by Sunu

Tags

matlab

Problem Group

Community
  • Solved
20Solvers

Replace Vector Elements

Created by Reza Ahmadzadeh

Tags

replace

Problem Group

Community
  • Solved
14Solvers

Arrange vector in ascending order

Created by Ismail

Tags

arrange vector in ascending order

Problem Group

Community
  • Solved
11Solvers

Find number of days

Created by Reza Ahmadzadeh

Tags

date

Problem Group

Community
  • Solved
18Solvers

Rotate a Matrix by 90 degrees

Created by Reza Ahmadzadeh

Tags

matrix

Problem Group

Community
  • Solved
32Solvers

Return the first and last character of a string

Created by @bmtran

Tags

plus15, matlab 101, indexing, strings

Problem Group

Community
  • Solved
33Solvers

Flip the main diagonal of a matrix

Created by Bruce Raine

Tags

diagonal, magic

Problem Group

Community
  • Solved
64Solvers

Scoring for oriented dominoes

Created by Doug Hull

Tags

contest

Problem Group

Tiles Challenge
  • Solved
36Solvers

Number of 1s in a binary string

Created by Srivardhini

Tags

sum, binary

Problem Group

Community
  • Solved
37Solvers

sorting

Created by Yvan Lengwiler

Tags

sorting

Problem Group

Community
  • Solved
26Solvers

Is A the inverse of B?

Created by Bruce Raine

Tags

identity, inverse, inverse function

Problem Group

Community
  • Solved
45Solvers

sum of diagonal of a square matrix

Created by Sunu

Tags

basic matlab

Problem Group

Community
  • Solved
27Solvers

Back to basics 16 - byte order

Created by Alan Chalker

Tags

byte order

Problem Group

Community
  • Solved
35Solvers

Back to basics 17 - white space

Created by Alan Chalker

Tags

white spaces

Problem Group

Community
  • Solved
40Solvers

Back to basics 20 - singleton dimensions

Created by Alan Chalker

Tags

dimensions

Problem Group

Community
  • Solved
29Solvers

Back to basics 15 - classes

Created by Alan Chalker

Tags

classes

Problem Group

Community
  • Solved
52Solvers

Back to basics 22 - Rotate a matrix

Created by Alan Chalker

Tags

matrices

Problem Group

Community
  • Solved
36Solvers

Back to basics 23 - Triangular matrix

Created by Alan Chalker

Tags

matrices

Problem Group

Community
  • Solved
30Solvers

Back to basics 21 - Matrix replicating

Created by Alan Chalker

Tags

matrices

Problem Group

Community
  • Solved
25Solvers

Woodall number

Created by the cyclist

Tags

woodall number theory

Problem Group

Community
  • Solved
17Solvers

commutative?

Created by Amitava Biswas

Tags

function

Problem Group

Community
  • Solved
22Solvers

Specific Element Count

Created by @bmtran

Tags

plus, occurrences, equality, counting, sum

Problem Group

Community
  • Solved
32Solvers

Back to basics 5 - Clipboard

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
  • Solved
41Solvers

Who knows the last digit of pi?

Created by Bart

Tags

cody meets chuck norris

Problem Group

Community
  • Solved
13Solvers

Nonuniform quantizer as a piecewise constant function

Created by Steve Eddins

Tags

quantizer

Problem Group

Community
  • Solved
22Solvers

peta to nano (x-ray)

Created by Amitava Biswas

Tags

physics

Problem Group

Community
  • Solved
27Solvers

Back to basics 13 - Input variables

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
  • Solved
30Solvers

Back to basics 4 - Search Path

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
  • Solved
48Solvers

Back to basics 10 - Max Float

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
  • Solved
43Solvers

Back to basics 9 - Indexed References

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
  • Solved
38Solvers

Back to basics 7 - Equal NaNs

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
  • Solved
25Solvers

Back to basics 2 - Function Path

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
  • Solved
43Solvers

Back to basics 12 - Input Arguments

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
  • Solved
58Solvers

Back to basics 11 - Max Integer

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
  • Solved
50Solvers

Back to basics 8 - Matrix Diagonals

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
  • Solved
38Solvers

Back to basics 15 - Benchmark

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
  • Solved
32Solvers

Back to basics 3 - Temp Directory

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
  • Solved
63Solvers

Back to basics 6 - Column Vector

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
  • Solved
48Solvers

Back to basics 14 - Keywords

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
  • Solved
51Solvers

Back to basics 1 - Saving

Created by Alan Chalker

Tags

basic matlab

Problem Group

Community
  • Solved
24Solvers

Number of Circles in a Number

Created by @bmtran

Tags

yahoo, facebook, preschool, numbers

Problem Group

Community
  • Solved
20Solvers

Specific toolboxes

Created by Alan Chalker

Tags

toolboxes

Problem Group

Community
  • Solved
36Solvers

This problem is locked. You need to solve more problems from Cody Challenge group to unlock it.

  • Solved
20Solvers

Trickier Timing

Created by Alan Chalker

Tags

time

Problem Group

Community
  • Solved
23Solvers

Circumscribed circles

Created by Alan Chalker

Tags

geometry

Problem Group

Community
  • Solved
22Solvers

Number of toolboxes?

Created by Alan Chalker

Tags

toolboxes

Problem Group

Community
  • Solved
28Solvers

Tricky timing

Created by Alan Chalker

Tags

timing

Problem Group

Community
  • Solved
59Solvers

This problem is locked. You need to solve more problems from Cody Challenge group to unlock it.

  • Solved