解決済み

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...

6年以上前

解決済み

Make a Star Pyramid
Create a star pyramid. First line will have 1 star, second will have two stars and so on... a basic program which is easily done...

6年以上前

解決済み

Mirror Image matrix across anti-diagonal
Given an input number x, create a mirror image matrix 'Y' across the anti-diagonal. For example, if x=3, Y = [1 2 3; ...

7年弱前

解決済み

radius of a spherical planet
You just measured its surface area, that is the input.

7年弱前

解決済み

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 ...

7年弱前

解決済み

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

7年弱前

解決済み

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...

7年弱前

解決済み

Back to basics 6 - Column Vector
Covering some basic topics I haven't seen elsewhere on Cody. Given an input vector, output true or false whether it is a colu...

7年弱前

解決済み

Negative matrix
Change the sign of all elements in given matrix.

7年弱前

解決済み

Square the input
Given a scalar or vector x, return the square of each element. Example x = [7 2] answer = [49 4]

7年弱前

解決済み

Add two numbers
Calculate the sum of two numbers. Example input = [2 3] output = 5

7年弱前

解決済み

Solve the Sudoku Row
*Description* A simple yet tedious task occurs near the end of most Sudoku-solving algorithms, computerized or manual. The ta...

7年弱前

解決済み

intersection of matrices
Given two matrices filled with ones and zeros, determine if they share a common row, column entry. These matrices are of identi...

7年弱前

解決済み

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...

7年弱前

解決済み

Flipping
Write code that can reverse the vector without using any sort of loop. Example Given the input vector A = [ 1 2 3 4 5...

7年弱前

解決済み

Omit columns averages from a matrix
Omit columns averages from a matrix. For example: A = 16 2 3 13 5 11 10 8 9 7 ...

7年弱前

解決済み

Mode
Find the mode of the vector Assumption: no vector is bimodal Example 1: input=[1 2 3 4 4]; output=4 Example 2: input=[7...

7年弱前

解決済み

reverse string
input='rama' output='amar'

7年弱前

解決済み

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...

7年弱前

解決済み

Replace May with April
For instance, if the input is input_str = 'The flowers may bloom in April'; then the output is output_str = 'The flo...

7年弱前

解決済み

Do you like your boss?
Do you like your boss? Answer can be any string! For example: Boss = 'Do you like your boss?'; Output = 'yes' or ...

7年弱前

解決済み

Squaring Matrix
Square the following matrix using matlab % A = 1 2 3 4 5 6 7 8 So new matrix should display...

7年弱前

解決済み

Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0

7年弱前

解決済み

Alphabetize by last name
Given a list of names in a cell array, sort the list by the last name. So if list = {'Barney Google','Snuffy Smith','Dagwood ...

7年弱前

解決済み

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

7年弱前

解決済み

Calendar Matrix
Return a calendar matrix for the given values of month and year. Assume that Sunday is the first day of the week. The resulting ...

7年弱前

解決済み

Generate the sum of Squares of the given number
|P(n) = 1^2 + 2^2 + ... + n^2| |P(1) = 1| |P(2) = 1 + 4 = 5;| |P(3) = 5 + 9 = 14;| |P(4) = 14 + 16 = 30;|

7年弱前

解決済み

Generate this matrix
Generate the following matrix. n = 2; out = [-4 -3 -2 -1 0 -3 -2 -1 0 1 -...

7年弱前

解決済み

Make one big string out of two smaller strings
If you have two small strings, like 'a' and 'b', return them put together like 'ab'. 'a' and 'b' => 'ab' For extra ...

7年弱前

解決済み

Create a vector whose elements depend on the previous element
The idea is to create a vector A whose elements depend on the previous element : *A(i+1) = 2*A(i)+1* *2 Inputs*: - A : The...

7年弱前