J-G van der Toorn

Last seen: 7 dagar ago | Active since 2012

Followers: 1 Following: 0

Message

Statistics

All

RANK
193
of 159 017

CONTRIBUTIONS
32 Problems
639 Solutions

SCORE
6 960

NUMBER OF BADGES
15

View badges

Feeds

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...

mer än 6 år ago

Solved

nästan 7 år 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 ...

nästan 7 år ago

Solved

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 ...

nästan 7 år ago

Solved

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 ...

nästan 7 år 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 ...

nästan 7 år 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...

nästan 7 år ago

Solved

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 ...

nästan 7 år ago

Solved

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...

nästan 7 år ago

Solved

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...

nästan 7 år 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...

nästan 7 år 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...

nästan 7 år ago

Solved

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

nästan 7 år ago

Solved

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 ...

nästan 7 år ago

Solved

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]

nästan 7 år ago

Solved

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

nästan 7 år ago

Solved

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 ...

nästan 7 år 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...

nästan 7 år ago

Solved

Datetime basics
Generate the datetime scalar representing the current date

nästan 7 år ago

Solved

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

nästan 7 år ago

Solved

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

nästan 7 år ago

Solved

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

nästan 7 år ago

Solved

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

nästan 7 år 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...

nästan 7 år 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 ...

nästan 7 år 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=...

nästan 7 år 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...

nästan 7 år 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 ...

nästan 7 år 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...

nästan 7 år ago

Solved

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

nästan 7 år ago