Community Profile # J-G van der Toorn

Last seen: 2ヶ月 前 2012 以来アクティブ

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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...

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...

3年以上 前

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 ...

3年以上 前

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 ...

3年以上 前

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 ...

3年以上 前

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 ...

3年以上 前

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

3年以上 前

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 ...

3年以上 前

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...

3年以上 前

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...

3年以上 前

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...

3年以上 前

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...

3年以上 前

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

3年以上 前

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 ...

3年以上 前

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]

3年以上 前

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

3年以上 前

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 ...

3年以上 前

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...

3年以上 前

Datetime basics
Generate the datetime scalar representing the current date

3年以上 前

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

3年以上 前

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

3年以上 前

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

3年以上 前

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

3年以上 前

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...

3年以上 前

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 ...

3年以上 前

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=...

3年以上 前

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...

3年以上 前

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 ...

3年以上 前

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...

3年以上 前

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

3年以上 前