Answered

how close external window in app designer?

close instruction will only close figure If you have created your windows1 (I suppose it's an app) like this hWin1 = windows1 ...

how close external window in app designer?

close instruction will only close figure If you have created your windows1 (I suppose it's an app) like this hWin1 = windows1 ...

11 months ago | 0

| accepted

Answered

Simulating ODEs with array inputs

Hi, I'm not sure you use ode45 correctly. In your function dydt = first_order(t, y, P, T_o) t is the current time and y the ...

Simulating ODEs with array inputs

Hi, I'm not sure you use ode45 correctly. In your function dydt = first_order(t, y, P, T_o) t is the current time and y the ...

11 months ago | 1

| accepted

Answered

Computing time for .^(1/2) or .^(1/p)

Explanation in french here In order to compute the square root of any number you only need to be able to compute the square roo...

Computing time for .^(1/2) or .^(1/p)

Explanation in french here In order to compute the square root of any number you only need to be able to compute the square roo...

11 months ago | 1

| accepted

Answered

Sum the daily data based on month and year

Lets assume your 3D variable is called data Frist get the group id : which width of data correspond to the same month of the sa...

Sum the daily data based on month and year

Lets assume your 3D variable is called data Frist get the group id : which width of data correspond to the same month of the sa...

11 months ago | 0

| accepted

Answered

vector indexing in different dimension

You can use arrayfun function: arrayfun(@(a,b) max(C(a:b)),A,B)

vector indexing in different dimension

You can use arrayfun function: arrayfun(@(a,b) max(C(a:b)),A,B)

11 months ago | 1

| accepted

Answered

How to divide gray scale image into 8x8 blocks and access each block separately to apply dct2 on the block

file = 'cameraman.tif'; im=imread(file); imshow(im); In order to use blockproc you have to use a function that accpts blockss...

How to divide gray scale image into 8x8 blocks and access each block separately to apply dct2 on the block

file = 'cameraman.tif'; im=imread(file); imshow(im); In order to use blockproc you have to use a function that accpts blockss...

11 months ago | 1

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Solved

Circle area using pi

Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.

6 years ago

Solved

Counting Money

Add the numbers given in the cell array of strings. The strings represent amounts of money using this notation: $99,999.99. E...

6 years ago

Solved

Project Euler: Problem 1, Multiples of 3 and 5

If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23...

6 years ago

Solved

Simple equation: Annual salary

Given an hourly wage, compute an annual salary by multiplying the wage times 40 and times 50, because salary = wage x 40 hours/w...

6 years ago

Solved

Balanced number

Given a positive integer find whether it is a balanced number. For a balanced number the sum of first half of digits is equal to...

6 years ago

Solved

Sorted highest to lowest?

Return 1 if the input is sorted from highest to lowest, 0 if not. Example: 1:7 -> 0 [7 5 2] -> 1

6 years ago

Solved

Quote Doubler

Given a string s1, find all occurrences of the single quote character and replace them with two occurrences of the single quote ...

6 years ago

Solved

Bottles of beer

Given an input number representing the number of bottles of beer on the wall, output how many are left if you take one down and ...

6 years ago

Solved

Pangrams!

A pangram, or holoalphabetic sentence, is a sentence using every letter of the alphabet at least once. Example: Input s ...

6 years ago

Solved

Find the alphabetic word product

If the input string s is a word like 'hello', then the output word product p is a number based on the correspondence a=1, b=2, ....

6 years ago

Solved

Pascal's Triangle

Given an integer n >= 0, generate the length n+1 row vector representing the n-th row of <http://en.wikipedia.org/wiki/Pascals_t...

6 years ago

Solved

Is my wife right? Now with even more wrong husband

Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...

6 years ago

Solved

Roll the Dice!

*Description* Return two random integers between 1 and 6, inclusive, to simulate rolling 2 dice. *Example* [x1,x2] =...

6 years ago

Solved

Swap the input arguments

Write a two-input, two-output function that swaps its two input arguments. For example: [q,r] = swap(5,10) returns q = ...

6 years ago

Solved

Cell joiner

You are given a cell array of strings and a string delimiter. You need to produce one string which is composed of each string fr...

6 years ago

Solved

Too mean-spirited

Find the mean of each consecutive pair of numbers in the input row vector. For example, x=[1 2 3] ----> y = [1.5 2.5] x=[1...

6 years ago

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Nearest Numbers

Given a row vector of numbers, find the indices of the two nearest numbers. Examples: [index1 index2] = nearestNumbers([2 5 3...

6 years ago

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Bullseye Matrix

Given n (always odd), return output a that has concentric rings of the numbers 1 through (n+1)/2 around the center point. Exampl...

6 years ago

Solved

Distance walked 1D

Suppose you go from position 7 to 10 to 6 to 4. Then you have walked 9 units of distance, since 7 to 10 is 3 units, 10 to 6 is 4...

6 years ago

Solved

Which values occur exactly three times?

Return a list of all values (sorted smallest to largest) that appear exactly three times in the input vector x. So if x = [1 2...

6 years ago

Solved

Reverse the vector

Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

6 years ago

Solved

Summing digits

Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...

6 years ago