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Pernicious Anniversary Problem

Since Cody is 5 years old, it's pernicious. A <http://rosettacode.org/wiki/Pernicious_numbers Pernicious number> is an integer w...

5 years ago

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Pentagonal Numbers

Your function will receive a lower and upper bound. It should return all pentagonal numbers within that inclusive range in ascen...

5 years ago

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Energy of a photon

Given the frequency F of a photon in giga hertz. Find energy E of this photon in giga electron volts. Assume h, Planck's ...

5 years ago

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How to subtract?

* Imagine you need to subtract a few numbers using MATLAB. * You will not be using eval for this task. * Given two ASCII strin...

5 years ago

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Matrix of almost all zeros, except for main diagonal

Write a program to input an integer n and build a n-by-n matrix with the numbers 1,2,...,n on the main diagonal and zeros elsewh...

5 years ago

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Average of square wave

given positive and negative peak , calculate dc level, 50% duty cycle

5 years ago

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Find out value of sine given by degree.

Find out value of sine given by degree. If theta=30, it's value must be 0.5.

5 years ago

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Remove the positive integers.

Given array,x, remove all the positive numbers and display ouput as y. Example x=[1 -2 3 -4] , output is y=[-2 -4].

5 years ago

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Back to Basics - Find no. of elements in a matrix?

Let A be a m*n matrix. Find the total no. of elements in A ? (Hint - formula based) A = [1 2 3;4 5 6]; output = 6

5 years ago

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Summation of array

Given an array, Find the sum of all of the elements in it Examples: Input x = [1 2 3 5; 4 5 6 7]; Output y is 33

5 years ago

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Speed of car

Calculate the Speed of car given its Distance travelled and time taken in x and y respectively

5 years ago

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Square the input

Given a scalar or vector x, return the square of each element. Example x = [7 2] answer = [49 4]

5 years ago

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UICBioE240 problem 1.3

Find the length of a vector. So if A = [1 1 1 1 1] Then B = 5

5 years ago

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Write a code that will follow the equation y = x * (x + x) * x.

If x = 5, y = 5 * (5+5) * 5 = 250

5 years ago

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UICBioE240 2.1

This will be useful later in the course, in conjunction to clc and clear all, what is the command to close all figure windows th...

5 years ago

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Sum of the Multiplication of Vectors

Given the vectors x and y as input, multiply the vectors and return the summation of its elements. Example: x = [1 2 ...

5 years ago

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Element by element multiplication of two vectors

Given two input vectors, return the element-by-element product. Example A = [1 2 3] B = [7 3 1] The answer should be...

5 years ago

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BASICS - sum part of vector

Please make a function, where as input you get vector "x" and and vector "c", where in "c" vector you get indexes to sum. Examp...

5 years ago

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Find the area of a triangle

Given a triangle with a base b and height h, return the triangle area.

5 years ago

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Model a simple pendulum

Model a simple pendulum of length 200cm with bob of mass 100g and plot the position in degrees. The pendulum starts at 30 degree...

5 years ago

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Matrix with different incremental runs

Given a vector of positive integers a = [ 3 2 4 ]; create the matrix where the *i* th column contains the vector *1:a(i)...

5 years ago

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Set some matrix elements to zero

First get the maximum of each *row*, and afterwards set all the other elements to zero. For example, this matrix: 1 2 3 ...

5 years ago

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Divisible by 3

Pursuant to the <http://www.mathworks.com/matlabcentral/cody/problems/42404-divisible-by-2 first problem> in this series, this o...

5 years ago

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Divisible by 2

This is the first problem in a set of "divisible by x" problems. You will be provided a number as a string and the function you ...

5 years ago

Solved

Spherical radius given four points

Determine the radius of a sphere provided four non-coplanar points on the surface of the sphere. pts = [x1 y1 z1; x...

5 years ago

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Geometry: Find Circle given 3 Non-Colinear Points

*This Challenge is to determine the center and radius of a circle given three non-colinear points.* *Input:* Points *Outpu...

5 years ago

Solved

Minimum Distance Point to Segment

This Challenge is to determine the minimum distance from a 2-D line segment defined by two points to a point. The point is (p...

5 years ago