Thomas Steffen

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1 – 50 of 127

Problem 2049. Six Steps to PCA - Step 2: Covariance

Created by: Neil Caithness

Tags principal component analysis, pca, z-scores

5

Solutions

87

Size

5

Solutions

87

Size

Problem 2043. Six Steps to PCA - Step 1: Centre and Standardize

Created by: Neil Caithness

Tags principal component analysis, pca, z-scores

7

Solutions

50

Size

7

Solutions

50

Size

Problem 497. Make an awesome ramp for a tiny motorcycle stuntman

Created by: Stephen

Tags stunt ramp

2

Solutions

42

Size

2

Solutions

42

Size

Problem 782. Some Assembly Required

Created by: James

Tags matrix manipulation, assembly

4

Solutions

423

Size

4

Solutions

423

Size

Problem 858. Permute diagonal and antidiagonal

Created by: Jean-Marie Sainthillier

Tags matrix, diag

2

Solutions

53

Size

2

Solutions

53

Size

Problem 1042. Operate on matrices of unequal, yet similar, size

Created by: J-G van der Toorn

Tags repmat, elementare operations, ops

2

Solutions

81

Size

2

Solutions

81

Size

Problem 792. Set some matrix elements to zero

Created by: Aurelien Queffurust

Tags indexing, matrix

3

Solutions

41

Size

3

Solutions

41

Size

Problem 796. Removing rows from a matrix is easy - but what about inserting rows?

Created by: Dirk Engel

Tags matrix manipulation

9

Solutions

76

Size

9

Solutions

76

Size

Problem 794. Matrix with different incremental runs

Created by: Aurelien Queffurust

Tags matrix manipulation, increment

1

Solution

31

Size

1

Solution

31

Size

Problem 798. Rotate input square matrix 90 degrees CCW without rot90

Created by: Christopher

Tags matrix manipulation

4

Solutions

24

Size

4

Solutions

24

Size

Problem 375. N-Dimensional Array Slice

Created by: @bmtran (Bryant Tran)

Tags indexing

11

Solutions

95

Size

11

Solutions

95

Size

Problem 611. surrounded matrix

Created by: Grzegorz Knor

Tags matrices

1

Solution

40

Size

1

Solution

40

Size

Problem 112. Remove the air bubbles

Created by: Ned Gulley

Tags matrix manipulation

6

Solutions

59

Size

6

Solutions

59

Size

Problem 1129. Reverse the elements of an array

Created by: HARISANKAR PS

Tags array reverse

1

Solution

25

Size

1

Solution

25

Size

Problem 413. Back to basics 23 - Triangular matrix

Created by: Alan Chalker

Tags matrices, basic matlab, basics

2

Solutions

12

Size

2

Solutions

12

Size

Problem 545. Flip the main diagonal of a matrix

Created by: Bruce Raine

Tags magic, diagonal

1

Solution

30

Size

1

Solution

30

Size

Problem 300. Remove NaN ?

Created by: Julio

Tags matrix, logical

2

Solutions

19

Size

2

Solutions

19

Size

Problem 411. Back to basics 21 - Matrix replicating

Created by: Alan Chalker

Tags matrices, basics

2

Solutions

14

Size

2

Solutions

14

Size

Problem 429. function on a moving window

Created by: Yvan Lengwiler

Tags moving average

7

Solutions

100

Size

7

Solutions

100

Size

Problem 126. Filter AC, pass DC

Created by: AMITAVA BISWAS

Tags acdc, basic matlab

2

Solutions

23

Size

2

Solutions

23

Size

Problem 2018. Side of a rhombus

Created by: Tanya Morton

Tags pythagoras, basic matlab

1

Solution

23

Size

1

Solution

23

Size

Problem 2020. Area of an Isoceles Triangle

Created by: Tanya Morton

Tags pythagoras, basic matlab

1

Solution

26

Size

1

Solution

26

Size

Problem 2023. Is this triangle right-angled?

Created by: Tanya Morton

Tags pythagoras

1

Solution

34

Size

1

Solution

34

Size

Problem 2022. Find a Pythagorean triple

Created by: Tanya Morton

Tags pythagoras

3

Solutions

59

Size

3

Solutions

59

Size

Problem 2024. Triangle sequence

Created by: Tanya Morton

Tags pythagoras, fibonacci

3

Solutions

45

Size

3

Solutions

45

Size

Problem 42510. Divisible by n, Composite Divisors

Created by: goc3

Tags prime, string, precision

6

Solutions

131

Size

6

Solutions

131

Size

Problem 42416. Divisible by 14

Created by: goc3

Tags string, precision, overflow

5

Solutions

58

Size

5

Solutions

58

Size

Problem 42409. Divisible by 7

Created by: goc3

Tags string, precision, overflow

1

Solution

88

Size

1

Solution

88

Size

Problem 42417. Divisible by 15

Created by: goc3

Tags string, precision, overflow

2

Solutions

31

Size

2

Solutions

31

Size

Problem 44092. Find the minimal value in N*N Matrix

Created by: Said BOUREZG

Tags matrix, basics, f

3

Solutions

14

Size

3

Solutions

14

Size

Counting pulses in a signal

Created by: MathWorks Simulink Team

Tags simulink

3

Solutions

34

Size

3

Solutions

34

Size

Compute the step response of a DC motor

Created by: MathWorks Simulink Team

Tags simulink, electronics, physical modeling

1

Solution

82

Size

1

Solution

82

Size

Produce a Fibonacci sequence

Created by: MathWorks Simulink Team

Tags mathematics, simulink, discrete

1

Solution

39

Size

1

Solution

39

Size

Add damping to a mass spring system

Created by: MathWorks Simulink Team

Tags ode, physics, simulink

1

Solution

40

Size

1

Solution

40

Size

Model a falling body

Created by: MathWorks Simulink Team

Tags ode, physics, simulink

1

Solution

31

Size

1

Solution

31

Size

Make a low pass filter

Created by: MathWorks Simulink Team

Tags signal processing, simulink

1

Solution

39

Size

1

Solution

39

Size

Model a simple pendulum

Created by: MathWorks Simulink Team

Tags ode, physics, pendulum

1

Solution

35

Size

1

Solution

35

Size

Model a mass spring system

Created by: MathWorks Simulink Team

Tags ode, physics, simulink

1

Solution

25

Size

1

Solution

25

Size

Problem 42418. Divisible by 16

Created by: goc3

Tags string, precision, overflow

2

Solutions

39

Size

2

Solutions

39

Size

Problem 42414. Divisible by 12

Created by: goc3

Tags string, precision, overflow

7

Solutions

51

Size

7

Solutions

51

Size

Problem 42413. Divisible by 11

Created by: goc3

Tags string, precision, overflow

2

Solutions

58

Size

2

Solutions

58

Size

Problem 42509. Divisible by n, Truncated-number Divisors

Created by: goc3

Tags prime, string, precision

11

Solutions

120

Size

11

Solutions

120

Size

Problem 42412. Divisible by 10

Created by: goc3

Tags string, precision, overflow

2

Solutions

13

Size

2

Solutions

13

Size

Problem 42411. Divisible by 9

Created by: goc3

Tags string, precision, overflow

8

Solutions

22

Size

8

Solutions

22

Size

Problem 42410. Divisible by 8

Created by: goc3

Tags string, precision, overflow

3

Solutions

38

Size

3

Solutions

38

Size

Problem 42408. Divisible by 6

Created by: goc3

Tags string, precision, overflow

5

Solutions

42

Size

5

Solutions

42

Size

Problem 2019. Dimensions of a rectangle

Created by: Tanya Morton

Tags pythagoras, basic matlab

2

Solutions

21

Size

2

Solutions

21

Size

Problem 2017. Side of an equilateral triangle

Created by: Tanya Morton

Tags pythagoras, basic matlab

2

Solutions

18

Size

2

Solutions

18

Size

Problem 2016. Area of an equilateral triangle

Created by: Tanya Morton

Tags pythagoras, basic matlab

1

Solution

18

Size

1

Solution

18

Size

Problem 2015. Length of the hypotenuse

Created by: Tanya Morton

Tags pythagoras, basic matlab

3

Solutions

14

Size

3

Solutions

14

Size

1 – 50 of 127