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yonatan friedman


Last seen: 9 dagar ago

50 total contributions since 2019

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Question


Bisection method, Numerical analysis
y=@(x) ((x+1)^2)*(exp(x^2-2)-1); a=0; b=1; m=(a+b)/2; while abs(y(m))<0.01 disp(m) if y(a)*y(m)<0 b=m; elseif y(...

23 dagar ago | 1 answer | 0

1

answer

Solved


Implement simple rotation cypher
If given a letter from the set: [abc...xyz] and a shift, implement a shift cypher. Example: 'abc' with a shi...

10 månader ago

Solved


Capitilize the first letter of every word in a string
For a given input string, capitalize every letter at the beginning of a word, and transform the rest of the letters to lower-cas...

10 månader ago

Solved


Generate a string like abbcccddddeeeee
This is the string version of Problem 1035. <http://www.mathworks.com/matlabcentral/cody/problems/1035-generate-a-vector-like-1-...

10 månader ago

Solved


letter yes yes & letter no no
Split a string into two strings, wherein the first string has all alphabetic letters and the second string has all the remaining...

10 månader ago

Solved


Shuffle
Shuffle a vector by breaking it up to segments of |n| elements, and rearranging them in a reversed order. For example, the ve...

11 månader ago

Solved


Vector pop
Take |n| elements from the end of the vector |v| and return both the shorten vector |v| and the |n| elements in a separate vecto...

11 månader ago

Solved


Vector push
Append an element |x| to the end of the vector |v| and return both the extended vector and the new number of its elements. |x| c...

11 månader ago

Solved


Separate even from odd numbers in a vector - without loops
*Without using loops*, rearrange a vector of integers such that the odd numbers appear at the beginning, and even numbers at the...

11 månader ago

Solved


Separate even from odd numbers in a vector - with a loop
*Using a loop*, rearrange a vector of integers such that the odd numbers appear at the beginning, and even numbers at the end. T...

11 månader ago

Solved


Approximate the cosine function
Without using MATLAB trigonometric functions, calculate the cosine of an argument |x| to a precision of |0.0001| *Hint:* You ...

11 månader ago

Question


fprintf and \n (pyramid of numbers)
clc; clear; n = 6; j = []; for i = 1 : n for j = i:n fprintf('%d',i:j) fprintf('\n') end end ~~...

11 månader ago | 1 answer | 0

1

answer

Question


counting rows after fprintf
function printPythagoras(n) n = 15; for i = 3:n for j = 4:n for k = 5:n if i^2 + j^2 == k^2 && i<j...

11 månader ago | 1 answer | 0

1

answer

Solved


How many unique Pythagorean triples?
For a given integer |n|, return all <https://en.wikipedia.org/wiki/Pythagorean_triple Pythagorean triples> that inlude numbers s...

11 månader ago

Solved


Find the starting index of a consecutive condition
Given a logical vector |v|, and a positive integer |n|, return the smallest index |i| that satisfies: all( v(i : i+n-1) ) =...

11 månader ago

Solved


Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

11 månader ago

Solved


Pattern matching
Given a matrix, m-by-n, find all the rows that have the same "increase, decrease, or stay same" pattern going across the columns...

11 månader ago

Solved


Making change
Given an amount of currency, return a vector of this form: [100 50 20 10 5 2 1 0.5 0.25 0.1 0.05 0.01] Example: Input a = ...

11 månader ago

Solved


Product of Each Column
Given a matrix |mat| with |n| columns, return a row vector |v| of length |n|, where every element in |v| is the product of the |...

11 månader ago

Solved


Diagonal Pattern
For a positive integer |n|, return an |nXn| matrix |mat| such that the value of each element in row |i| and column |j| is given ...

11 månader ago

Question


strings become numbers and get in to the matrix
i have a matrice [1 0 -1 -1 2 -1 1 1 0 -1 -1 2 -1 1 1 -1 0 ...

11 månader ago | 1 answer | 0

1

answer

Question


exchange problems to 0.xyz (after the dot)
making change problem I need to exchange my money to "little-money" in this form : [0.5 , 0.25 , 0.1 , 0.05 , 0.01] I have : ...

11 månader ago | 1 answer | 0

1

answer

Solved


Tax Calculator
Calculate the tax for a given income. 10% tax is paid for any income up to $2,000. 20% tax is paid for additional income u...

12 månader ago

Solved


Remove the air bubbles from a vector
_*A reduced version of Problem 112*_ Given a column vector v, return a vector w in which all the zeros have "bubbled" to the ...

12 månader ago

Solved


Add a vector to a matrix
Given a matrix |mat| of size |mXn| and a row vector |v| of size |1Xs|, return a matrix with |m+1| rows that conatains |mat| over...

12 månader ago

Solved


Eye Squared
For a positive integer |n| create the identity matrix with |n| elements. In case it is not possible to produce an identity ma...

12 månader ago

Solved


Given a matrix A (size m x n) create a matrix B which consists of matrix A sorted in descending order by columns and then by rows.
--------------- A= [ 2 6 -3 7 12 0 -12 5 1] --------------- B= [12 7 1 6 2 0 5 -3 ...

12 månader ago

Solved


Given a matrix A (size m x n) create a matrix B (size m+2 x n+2) which consists of matrix A surrounded by zeros. See Example below:
A = [1 2 3 4 5 6] ----------- B = [0 0 0 0 0 0 1 2 3 0 0 4 5 6 0 0 0 0 0 0]

12 månader ago

Solved


Given a Vector v1, create v2 which is the sum of each two adjacent elements in v1. {length(v2)=length(v1)-1}
if v1 is [1 2 3 4 5 6 7 8] then v2 should be [3 5 7 9 11 13 15]. if v1 is [1; 3; 5; 7] the...

12 månader ago

Solved


Given a matrix A return a vector of the product of the elements in each column using a loop without using prod.
--------------------- for m: 3 1 3 3 10 1 9 1 9 4 1 4 5 6 5 ...

12 månader ago

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