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**Content Feed**

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Energy of a photon

*⚛ ☢ ⚛ ☢ ⚛ ☢ ⚛* Given the frequency F of a photon in giga hertz. Find energy E of this...

12 days ago

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Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock.

Submit your answer to this problem a multiple of 5 seconds after the hour. Your answer is irrelevant; the only thing that matte...

4 years ago

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How to subtract?

*± ± ± ± ± ± ± ± ± ± ±* * Imagine you need to subtract one...

4 years ago

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The 5th Root

Write a function to find the 5th root of a number. It sounds easy, but the typical functions are not allowed (see the test su...

5 years ago

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How many Integers?

Count the integers in a given vector |v|. You *must* use a loop to count each element separately. Examples: Input: v...

5 years ago

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Add Me To Death (Sum sum sum)

Given certain vector, sum of the input vector, get the sum of 2 adjacent numbers in the input, and sum of the output vector (wh...

5 years ago

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Strange Number Algorithms

Three integer numbers will be provided to you. Write a function to Step1: Multiply first number by 3. Step2: Add 6 with t...

5 years ago

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Elapsed time is -0.005204 seconds.

Write a function that takes less than zero seconds to execute, as measured using tic and toc. For repeatability, the test case p...

5 years ago

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vectors counting by 5

Create a vector with numbers from x_min to x_max in increments of 5.

5 years ago

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Matrix Manipulation

Given an m*n matrix, see if a matrix contains any 0s in any row. if it contains 0 anywhere in any particular row, delete that ro...

5 years ago

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Who invented zero?

We know the importance zero in computer science, mathematics... but who invented zero? Clue: He was the first in the line ...

5 years ago

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Matrix which contains the values of an other matrix A at the given locations.

If you have two matrices, which together give xc and yc coordinates into another matrix, eg : xc = [1 1 1; 2 2 1]; ...

5 years ago

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Are you in XY plane?

Take a point P as an input position Vector (x,y,z). If you are in XY plane, return 1 as an output otherwise return 0. Example...

5 years ago

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Simple date to serial no. conversion

Convert a date string to a serial date number. For example if you take x='19-May-2001' then the result is 730990 x...

5 years ago

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Find the Nth Root of a Given Number

Find the Nth root of a given number x. Examples x = 4096 n = 4 y = 8 x = 625 n = 5 y = 3.6239

5 years ago

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Selecting books on MATLAB for experts and beginners (blindfolded)

* Imagine you have been blindfolded and asked to pick up any two books randomly from the table. * There are n books suitable f...

5 years ago

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Number of odd and even elements within matrix

Input(m) - any matrix with integers Output(n) - n(1)=number of odd elements, n(2)=number of even elements Example: * m=...

5 years ago

Solved

String Array Basics, Part 1: Convert Cell Array to String Array; No Missing Values

<http://www.mathworks.com/help/matlab/characters-and-strings.html String array> and cell array are two types of containers for s...

5 years ago

Solved

Use R2016b Text Manipulations to Fix These Addresses (Part 2)

We have a series of addresses like the following which we'd like to reformat. All the addresses are in the Boston area of Mass...

5 years ago

Solved

Words Count: A String Array Approach

Given an input character vector consisting of words, punctuation marks, white spaces, and possibly newline characters (\n), arra...

5 years ago

Solved

Use R2016b Text Manipulations to Fix These Addresses (Part 1)

We have a series of addresses like the following which we'd like to reformat. Can you remove the latitude and longitude from the...

5 years ago

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Combine the first and last names

MATLAB R2016 provides a rich set of functions to work with string arrays. In this problem, you will be given two string arrays o...

5 years ago

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Distance walked 2D

Suppose you go from x-y coordinates [3,4] to [0,0] to [0,1] to [1,1], then you walked 7 units of distance.

5 years ago