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Erik


Last seen: 6 months ago

Swarthmore College

25 total contributions since 2008

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Erik's Badges

  • Personal Best Downloads Level 3
  • 5-Star Galaxy Level 5
  • GitHub Submissions Level 3
  • First Submission
  • Solver

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Solved


We love vectorized solutions. Problem 1 : remove the row average.
Given a 2-d matrix, remove the row average from each row. Your solution MUST be vectorized. The solution will be tested for ac...

1 year ago

Solved


Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

1 year ago

Solved


Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

1 year ago

Solved


Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

3 years ago

Solved


Find the largest value in the 3D matrix
Given a 3D matrix A, find the largest value. Example >> A = 1:9; >> A = reshape(A,[3 1 3]); >> islargest(A) a...

3 years ago

Solved


Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

3 years ago

Submitted


echeever/SecondOrderGUI
A GUI useful for learning and/or teaching properties of second order systems

5 years ago | 0 downloads |

Submitted


echeever/ConvolveGUI
A GUI for graphically demonstrating the convolution process.

5 years ago | 2 downloads |

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Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

5 years ago

Solved


Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

5 years ago

Solved


Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...

5 years ago

Solved


Is my wife right?
Regardless of input, output the string 'yes'.

5 years ago

Solved


Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

5 years ago

Solved


Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

5 years ago

Solved


Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

5 years ago

Solved


Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

5 years ago

Solved


Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

5 years ago

Solved


Add two numbers
Given a and b, return the sum a+b in c.

5 years ago

Solved


Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

5 years ago

Submitted


echeever/BodePlotGui
A tool for generating piecewise linear asymptotic Bode diagrams.

6 years ago | 11 downloads |

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Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

7 years ago

Submitted


p_input - mimic functionality of "input" while publishing.
This function mimics the behavior of the "input" function but works while publishing.

8 years ago | 2 downloads |

Submitted


GUI for Root Locus
This program helps to sketch root locus plot

9 years ago | 26 downloads |

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GUI for Understanding Nyquist Plots
This is a GUI designed to help learn about Nyquist plots.

9 years ago | 8 downloads |

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Submitted


SCAM- A tool for symbolically solving circuit equations
This tool starts with a netlist (similar to spice) and generates and solves the resulting circuit.

12 years ago | 8 downloads |

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Submitted


Visualizing Phasors, an Animated GUI
A tool for visualizing phasor (voltage, current, impedance), along with animation.

12 years ago | 27 downloads |

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