678 total contributions since 2012

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Operate on matrices of unequal, yet similar, size

You may want to add a vector to a matrix, implying that the vector is added to each column of the matrix. Or multiply a 3x4x5 ma...

1 year ago

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Numbers on 7-segment

This is a 7-segment: _ |_| |_| It's a 3-by-3 char matrix.It has made by 3 characters: '_' , '|' and ' ' (space...

1 year ago

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Calculate time taken by light to reach earth surface

We know the time(seconds) taken by light to reach surface of earth. What if the distance varies yearly or source of light moves ...

1 year ago

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Draw 'H'

Draw a x-by-x matrix 'H' using 1 and 0. (x is odd and bigger than 2) Example: x=5 ans= [1 0 0 0 1 1 0 0 0 1 ...

1 year ago

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Draw 'F'

Draw a x-by-x matrix 'F' using 1 and 0. (x is odd and bigger than 4) Example: x=5 ans= [1 1 1 1 1 1 0 0 0 0 ...

1 year ago

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Draw 'E'

Draw a x-by-x matrix 'E' using 1 and 0. (x is odd and bigger than 4) Example: x=5 ans= [1 1 1 1 1 1 0 0 0 0 ...

1 year ago

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Mean = Standard Deviation

Create a series with following properties; # All of the members should be positive integer # Mean of the series should be in...

1 year ago

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Find prime number couples

Given a vector a, which will always contain at least one pair of prime numbers couple, return a matrix called 'couple' in which ...

1 year ago

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Angle between Two Vectors

The dot product relationship, a dot b = | a | | b | cos(theta), can be used to determine the acute angle between vector a and ve...

1 year ago

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Clockwise or Counterclockwise

Given a list of 2-d points defining the vertices of a polygon, determine whether these points are sorted clockwise. The input...

1 year ago

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Calculate the area of a triangle between three points

Calculate the area of a triangle between three points: P1(X1,Y1) P2(X2,Y2) P3(X3,Y3) these three points are the vert...

1 year ago

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Television Screen Dimensions

Given a width to height ratio of a TV screen given as _w_ and _h_ as well as the diagonal length of the television _l_, return t...

1 year ago

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find number of times of occurrence of the most frequent number in a row vector

In a given row vector, find the number of times a mode of a row vector has occurred example: in [2 5 5 5 5 3], output is 4 ...

1 year ago

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Draw 'D'.

Draw a x-by-x matrix 'D' using 0 and 1. example: x=4 ans= [1 1 1 0 1 0 0 1 1 0 0 1 1 1 1 0]

1 year ago

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Basic Quadratic Equation

Create the equation: y=(3x)^2+(5x)+35 and compute y for various values of x

1 year ago

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function to compute root mean square of first nn positive odd integers

Write a function called odd_rms that returns orms, which is the square root of the mean of the squares of the first nn positive ...

1 year ago

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Percentage of zeros in a matrix of only 1s and 0s

Write a function called _zero_stat_ that takes a matrix as an input that only has 0 and 1 elements. The function needs to comput...

1 year ago

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Check if there are white spaces in the input string

If there are white spaces in the input string, output=1 else 0

1 year ago

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Remove white spaces at the end of the input string

Remove all trailing white spaces at the end of the input strings

1 year ago

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Perimeter of a semicircle

Given the diameter d, find the perimeter of a semicircle

1 year ago

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Nth root of a number

Given an input and a number N, find the Nth root of the number(s)

1 year ago

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Dial Up

Each number on telephone keypads, except 0 and 1, corresponds to a set of uppercase letters as shown in this list: 2 ABC, 3 DEF...

1 year ago

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Draw 'O' !

Given n as input, generate a n-by-n matrix 'O' using 0 and 1 . example: n=4 ans= [1 1 1 1 1 0 0 1 ...

1 year ago

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Draw 'I'

Given n as input, draw a n-by-n matrix 'I' using 0 and 1. example: n=3 ans= [0 1 0 0 1 0 0 1 0] n=...

1 year ago

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Day counter function

Write a function called _day_counter_ that returns the number of Mondays that fell on the first day of the month in a given year...

1 year ago

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Draw a 'N'!

Given n as input, generate a n-by-n matrix 'N' using 0 and 1 . Example: n=5 ans= [1 0 0 0 1 1 1 0 0 1 1 0 ...

1 year ago

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Computational power of Cody servers

It has been <https://en.wikipedia.org/wiki/Moore%27s_law#History predicted> that the performance of integrated circuits would _d...

1 year ago

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Basics: counting digits of a number irrespective of the sign

publish the number of digits in any input integer example: -23---->2

1 year ago