# Toby Driscoll

### University of Delaware

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REPUTATION**5,421**

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CONTRIBUTIONS**16** Files

DOWNLOADS **62**

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**Feeds**

Not responding on startup, macOS Mojave

For me the key was adding MATLAB to System Prefs / Security & Privacy / Accessibility. I'm running DFX, Dropbox, Google Drive St...

4 years ago | 0

Submitted

Fundamentals of Numerical Computation

Codes and other resources for the textbook Fundamentals of Numerical Computation.

6 years ago | 6 downloads |

Submitted

Schwarz-Christoffel Toolbox

Computes conformal maps to polygons, allowing easy solution of Laplace's equation.

10 years ago | 23 downloads |

Submitted

IEEE 754 binary representation

Converts a double into its underlying 64-bit representation, including sign, exponent, and mantissa.

10 years ago | 7 downloads |

Solved

Find the longest sequence of 1's in a binary sequence.

Given a string such as s = '011110010000000100010111' find the length of the longest string of consecutive 1's. In this examp...

11 years ago

Solved

Bullseye Matrix

Given n (always odd), return output a that has concentric rings of the numbers 1 through (n+1)/2 around the center point. Exampl...

11 years ago

Solved

Who Has the Most Change?

You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

11 years ago

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Return the largest number that is adjacent to a zero

This example comes from Steve Eddins' blog: <http://blogs.mathworks.com/steve/2009/05/27/learning-lessons-from-a-one-liner/ Lear...

11 years ago

Solved

Remove any row in which a NaN appears

Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

11 years ago

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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...

11 years ago

Solved

Find the numeric mean of the prime numbers in a matrix.

There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

11 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...

11 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...

11 years ago

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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 ...

11 years 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...

11 years ago

Solved

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:...

11 years ago

Submitted

Finite difference weights

Finds finite difference (or interpolation) weights for an arbitrary set of nodes in one dimension.

15 years ago | 1 download |

Submitted

Sparse Toeplitz matrix construction

Produces a sparse Toeplitz matrix given only the first row and column, like built-in Toeplitz.

15 years ago | 2 downloads |

Submitted

Automatic validation of software

Validate software using a test library of functions in a directory.

16 years ago | 1 download |

Submitted

HTML calendar generator

HTMLCAL creates a web page with nicely formatted monthly calendars over a date range of your choosin

17 years ago | 1 download |

Submitted

Piecewise defined function builder

Constructs a callable function that applies different definitions based on supplied conditions.

17 years ago | 2 downloads |

Submitted

Singular Fourier-Pade approximation

Circumvention of the Gibbs phenonmenon though Pade approximations with singularities

17 years ago | 1 download |

Submitted

outselect.m

Select or reorder any function's output arguments.

19 years ago | 1 download |

Submitted

inputgui

A simple, flexible, and overridable graphical replacement for INPUT.

21 years ago | 2 downloads |

Submitted

combplot

Copies axes from existing figures into a single new figure window.

21 years ago | 1 download |