Solved

Add a block to a model

Produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/add-block-eqn.png>> In this case, the slope of...

plus de 3 ans ago

Solved

Connect blocks in a model

Connect the blocks in the model to produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/connect-blocks...

plus de 3 ans ago

Solved

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 ...

plus de 3 ans ago

Solved

Tell me the slope

Tell me the slope, given a vector with horizontal run first and vertical rise next. Example input: x = [10 2];

plus de 3 ans ago

Solved

Area of an Isoceles Triangle

An isosceles triangle has equal sides of length x and a base of length y. Find the area, A, of the triangle. <<http://upload...

plus de 3 ans ago

Solved

Area of an equilateral triangle

Calculate the area of an equilateral triangle of side x. <<http://upload.wikimedia.org/wikipedia/commons/e/e0/Equilateral-tr...

plus de 3 ans ago

Solved

Rotate input square matrix 90 degrees CCW without rot90

Rotate input matrix (which will be square) 90 degrees counter-clockwise without using rot90,flipud,fliplr, or flipdim (or eval)....

plus de 3 ans ago

Solved

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 ...

plus de 3 ans ago

Solved

Reverse the elements of an array

Reverse the order of elements in an array: eg: input X = [ 1 2 3 ; 4 5 6 ; 7 8 9 ] o...

plus de 3 ans ago

Solved

Back to basics 21 - Matrix replicating

Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix, generate an output matrix that consists o...

plus de 3 ans ago

Solved

Write a function man that takes a row vector v and returns a matrix H as follows..

Write a function called man that takes a row vector v as an input and returns a matrix H whose first column consist of the eleme...

plus de 3 ans ago

Solved

frame of the matrix

Given the matrix M, return M without the external frame.

plus de 3 ans ago

Solved

Remove the first, third and fifth rows of a matrix

Given a matrix x with at least five rows, return a matrix y that includes all rows of x except for th 1st, the 3rd and 5th. E...

plus de 3 ans ago

Solved

Pernicious Anniversary Problem

Since Cody is 5 years old, it's pernicious. A <http://rosettacode.org/wiki/Pernicious_numbers Pernicious number> is an integer w...

plus de 3 ans 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

plus de 3 ans 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...

plus de 3 ans ago

Problem

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) ) =...

presque 4 ans ago | 2 | 47 solvers

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-...

presque 4 ans ago

Problem

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...

presque 4 ans ago | 1 | 111 solvers

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...

presque 4 ans ago

Solved

Convert String to Morse Code

Convert a given string to international <http://en.wikipedia.org/wiki/Morse_code Morse Code> * Strings will only have [A-z], ...

presque 4 ans ago

Solved

poll: would you like the regexp (?@cmd) functionality to be banned in Cody?

This problem is a poll (and a little bit of "white hat hacktivism" as well) regarding Cody users sentiment about the use of rege...

presque 4 ans ago

Problem

Approximate the cosine function

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

presque 4 ans ago | 1 | 331 solvers

Problem

Shuffle

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

presque 4 ans ago | 0 | 308 solvers

Problem

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...

presque 4 ans ago | 2 | 367 solvers

Problem

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...

presque 4 ans ago | 2 | 350 solvers

Solved

Perl 1: push

_This is part of a series of perl function which were very helpful for many perl programmers. Could you implement it in Matlab?_...

presque 4 ans ago

Problem

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...

presque 4 ans ago | 1 | 440 solvers

Problem

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...

presque 4 ans ago | 1 | 378 solvers

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 ...

presque 4 ans ago