Solved

Find all the zeros of sinus , cosinus and tangent in a given interval
The aim is to find all the zeros of a function within an interval. *Input* : * fcn : an anonymous function (@sin, @cos......

14 years ago

Answered
How to Plot a matrix?
Visualizing a matrix for relative magnitudes can be done with surf or I like imagesc. A=randi(256,[64 128]); figure;imag...

14 years ago | 0

Solved

Compute the dilation of a binary image
A basic operation in image analysis is the dilation. Given an image where each pixel is either on or off (black/white, true/fals...

14 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,...

14 years ago

Solved

Pythagorean perfect squares: find the square of the hypotenuse and the length of the other side
Given the square root of a square number, *seed*, and a range, *n*, find the square number, *Z* as well as the other side, *y*, ...

14 years ago

Solved

Similar Triangles - find the height of the tree
Given the height, h1, of a power pole, shorter than a tree, a given distance, x2 away, please find h2, height of the tree. Pleas...

14 years ago

Problem

Solve Quadratic : No * - or key functions permitted
Solve the quadratic equation *ax^2+bx+c=0*. However, some of the normal functions and symbols are not allowed. x=[ -b +/- sq...

14 years ago | 1 | 34 solvers

Solved

Solve Quadratic : No * - or key functions permitted
Solve the quadratic equation *ax^2+bx+c=0*. However, some of the normal functions and symbols are not allowed. x=[ -b +/- sq...

14 years ago

Problem

Find third Side of a right triangle given hypotenuse and a side. No * - or other functions allowed
Find the remaining side of a triangle given the hypotenuse and a side. However, the normal functions and symbols are not allowe...

14 years ago | 5 | 253 solvers

Solved

14 years ago

Solved

Fill a zeros matrix
The aim is to fill an array of all zeros given a numerical value and the index of row and columns for this value. 3 Inputs: ...

14 years ago

Solved

Convert single-precision floating-point number to binary representation
Write a function which takes a scalar <http://en.wikipedia.org/wiki/Single-precision_floating-point_format single-precision floa...

14 years ago

Solved

Find similar/related functions
The _help_ function can be useful for getting quick assistance on a particular function. For most built-in MATLAB functions, a p...

14 years ago

Solved

Set the array elements whose value is 13 to 0
Input A either an array or a vector (which can be empty) Output B will be the same size as A . All elements of A equal to 13...

14 years ago

Solved

Pentago: find winning move
<http://en.wikipedia.org/wiki/Pentago Pentago> is a challenging two-player strategy game. The objective is to be the first playe...

14 years ago

Solved

Change a specific color in an image
The ability to change colors can be a useful tool in image processing. Given an m x n x 3 array (much like CData in images), fin...

14 years ago

Solved

Find indices of multiple minima in a vector
I have a vector, say: x= [ 1 5 6 2 6 1 3 5 1] Now I would like to get the index of the minimum values in this vector. When...

14 years ago

Solved

Sum of first n terms of a harmonic progression
Given inputs a, d and n, return the sum of the first n terms of the harmonic progression a, a/(1+d), a/(1+2d), a/(1+3d),....

14 years ago

Solved

Find the "ordinary" or Euclidean distance between A and Z
A, B and Z define three points in the 3D _Euclidean_ space of the form: A = [x1;y1;0]; B = [x2;y2;0]; Z = [x2;y2;z]; Find th...

14 years ago

Solved

Global usage
This Challenge is to utilize Global variables. Global variables are risky as the subroutine may inadvertently and unwantingly...

14 years ago

Solved

Clock Hand Angle 1
Given a time in HH:MM:SS, find the smallest angle (in degrees) between the hour and minute hand

14 years ago

Solved

Given two strings, find the maximum overlap
Given two strings s1 and s2, create a new string s3 which is as short as possible and contains both strings. If s1 = [1 2...

14 years ago

Solved

Find matching parenthesis
One of the most indispensable things about a great text editor for programming is the ability to quickly jump between matching p...

14 years ago

Solved

Create a function handle that reverses the input arguments of another function handle
Given a function that takes two input arguments and returns one output, create another function handle that performs the same op...

14 years ago

Solved

Persistent Usage
This Challenge is to implement the Matlab Persistent variable capability. Given a sequence of Calls to a function return the ...

14 years ago

Solved

Longest Divisor Run
Given the vector a, find the longest run of consecutive numbers that can be evenly divided by the same number d where d > 1. ...

14 years ago

Problem

Mandelbrot Number Test [Real+Imaginary]
The <http://en.wikipedia.org/wiki/Mandelbrot_set Mandelbrot Set> is built around a simple iterative equation. z(1) = c z...

14 years ago | 1 | 28 solvers

Solved

Read a column of numbers and interpolate missing data
Given an input cell array of strings s, pick out the second column and turn it into a row vector of data. Missing data will be i...

14 years ago

Solved

Reverse the Words (not letters) of a String
*Description* Change the words of a string such that the words appear in reverse order. You may assume that the string is a n...

14 years ago

Solved

Mandelbrot Numbers
The <http://en.wikipedia.org/wiki/Mandelbrot_set Mandelbrot Set> is built around a simple iterative equation. z(1) = c z...

14 years ago