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J-G van der Toorn


678 total contributions since 2012

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Solved


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...

10 mesi ago

Solved


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...

11 mesi ago

Solved


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 ...

11 mesi 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 ...

11 mesi 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 ...

11 mesi ago

Solved


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 ...

11 mesi ago

Solved


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

11 mesi 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 ...

11 mesi 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...

11 mesi 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...

11 mesi ago

Solved


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...

11 mesi ago

Solved


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...

11 mesi ago

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Second Diagonal
Transpose the matrix from it's second diagonal.

11 mesi 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 ...

11 mesi 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]

11 mesi ago

Solved


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

11 mesi 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 ...

11 mesi ago

Solved


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...

11 mesi ago

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Datetime basics
Generate the datetime scalar representing the current date

11 mesi 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

11 mesi 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

11 mesi ago

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Perimeter of a semicircle
Given the diameter d, find the perimeter of a semicircle

11 mesi 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)

11 mesi ago

Solved


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...

11 mesi ago

Solved


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 ...

11 mesi ago

Solved


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=...

11 mesi ago

Solved


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...

11 mesi ago

Solved


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 ...

11 mesi ago

Solved


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...

11 mesi ago

Solved


Basics: counting digits of a number irrespective of the sign
publish the number of digits in any input integer example: -23---->2

11 mesi ago

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