A résolu

Duplicate a character
Duplicate a character 'n' times. Example 1: str='a' n=5 output='aaaaa' Example 2: str='*' n=3 output='***'

presque 10 ans il y a

A résolu

Writing a while loop
Write a while loop that continues to increment userValue by 5 until userValue is less than 0.

presque 10 ans il y a

A résolu

While loop: Summation
Write a while loop that assigns summedValue with the sum of all values from 1 to userNum. Assume userNum is always greater than ...

presque 10 ans il y a

A résolu

Create incrementing array
Given a and b generate an output matrix as shown in following examples: a=2 b=5 output=[2 20 200 2000 20000] a=4 b...

presque 10 ans il y a

A résolu

Sophie Germain prime
In number theory, a prime number p is a *Sophie Germain prime* if 2p + 1 is also prime. For example, 23 is a Sophie Germain prim...

presque 10 ans il y a

A résolu

Is it an Armstrong number?
An Armstrong number of three digits is an integer such that the sum of the cubes of its digits is equal to the number itself. Fo...

presque 10 ans il y a

A résolu

Matlab Basics - y as a function of x
write a script to calculate y as a function of x, such that y = 6x^2 + 5x - 2

presque 10 ans il y a

A résolu

Find matrix of indices for multidimensional matrix.
Given some multidimensional matrix A. Get a matrix of the same size as A where all elements are replaced by their index along th...

presque 10 ans il y a

A résolu

Create cotangent function out of sine.
Please, don't use cos, tan, cot matlab functions.

presque 10 ans il y a

Question

Why bvp4c not works?
I have an error in using bvp4c, my result is wrong My task is to solve 3*y"+2*y'=x y(0)=-2 y(1)=6 my matlab c...

presque 10 ans il y a | 1 réponse | 0

1

réponse

A résolu

Derivative of polynomial
Compute the derivative of a given polynomial. The input is an <http://www.mathworks.com/help/matlab/math/representing-polynomial...

presque 10 ans il y a

A résolu

Matlab Basics - Absolute Value
Write a script that returns the absolute value of the elements in x e.g. x = [-1 -2 -3 -4] --> y = [1 2 3 4]

presque 10 ans il y a

A résolu

convert matrix to single column
given any matrix, convert it to single column

presque 10 ans il y a

A résolu

ASCii Code
Using Matlab get the ASCii for '?'

presque 10 ans il y a

A résolu

Circumscribed circles
Given the lengths of the 3 sides of a triangle, output the radius of the circumscribed circle. Example: [3 4 5] -> 2.5

presque 10 ans il y a

A résolu

Double summation
Write two nested for loops to calculate the following double summation: <<https://drive.google.com/uc?id=0B74PAULDIwwsWFhlNTV...

presque 10 ans il y a

A résolu

Do Fast Fourier Transformation
Example Fast Fourier Transformation from vector [2,1]) ans = 3 1

presque 10 ans il y a

A résolu

Count ones
Write a program to count number of ones (1s) in an integer variable input. For example: Input x=2200112231 output y=3 I...

presque 10 ans il y a

A résolu

Make an awesome ramp for a tiny motorcycle stuntman
Okay, given a vector, say v=[1 3 6 9 11], turn it into a matrix 'ramp' like so: m=[1 3 6 9 11; 3 6 9 11 0; 6 9 ...

presque 10 ans il y a

A résolu

ASCii Code
Using matlab, give the symbol that is associated with ASCii code 122

presque 10 ans il y a

A résolu

Positive Infinity
Round the array a towards positive infinity

presque 10 ans il y a

A résolu

Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

presque 10 ans il y a

A résolu

Reverse a matrix
Its simple. You have to reverse a given matrix.

presque 10 ans il y a

A résolu

Detect a number and replace with two NaN's
Write code which replaces the number 1 with two NaNs. Example X = [ 1 2 NaN 4 1 3 7 NaN 1 4 NaN 2] ...

presque 10 ans il y a

A résolu

Matlab Basics - Convert a row vector to a column vector
Write a script to convert a row (e.g. x = [1 2 3]) to a column (e.g. y = [1;2;3]), your script should be able to do this for any...

presque 10 ans il y a

A résolu

Building matrices
If you have matrix A, create matrix B using matrix A as an "element" A = [1 2 3 4; 5 6 7 8...

presque 10 ans il y a

A résolu

Sum the Digits of a Number
Given an integer, sum the digits repeatedly until you end up with a single value less than 10. For example, if you add the di...

presque 10 ans il y a

A résolu

Find the nearest integer
Given a vector of integers and a real number find the closest integer. EX: >> a = [2 4 5 6 8 10]; >> b = 4.6; >> nea...

presque 10 ans il y a

A résolu

surrounded matrix
With a given matrix A (size m x n) create a matrix B (size m+2 x n+2) so that the matrix A is surrounded by ones: A = [1 2 ...

presque 10 ans il y a

A résolu

Alternating sum
Given vector x, calculate the alternating sum y = x(1) - x(2) + x(3) - x(4) + ...

presque 10 ans il y a