Gelöst

Multiply a column by a row
* Given a column vector C and and a row vector R. * Output a matrix M. * Every column of M equals to C multiplied by correspon...

mehr als 12 Jahre vor

Gelöst

Back to basics 23 - Triangular matrix
Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix, return a matrix with all elements above a...

mehr als 12 Jahre vor

Gelöst

Maximum running product for a string of numbers
Given a string s representing a list of numbers, find the five consecutive numbers that multiply to form the largest number. Spe...

mehr als 12 Jahre vor

Gelöst

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...

mehr als 12 Jahre vor

Gelöst

Given a window, how many subsets of a vector sum positive
Given a vector: [1 0 -1 3 2 -3 1] and a window of 2, A sliding window would find: 1 + 0 = 1 0 - 1 = -1 ...

mehr als 12 Jahre vor

Gelöst

Duplicate each element of a vector.
for an n-dimensional vector x, the function should return another vector 2n-dimension which each element is repeated twice. Ex...

mehr als 12 Jahre vor

Gelöst

Cumulative probability of finding an unlikely combination
This is a supplemental problem to the <http://www.mathworks.com/matlabcentral/cody/problems/621-cryptomath-addition CryptoMath> ...

mehr als 12 Jahre vor

Gelöst

Retirement savings
At the start of what year will you have reached or exceeded a savings goal? Parameters (all are constant scalars given in a s...

mehr als 12 Jahre vor

Gelöst

String substitution, sub problem to cryptoMath
This is a sub problem related to this problem: <http://www.mathworks.com/matlabcentral/cody/problems/621-cryptomath-addition>...

mehr als 12 Jahre vor

Gelöst

Decode a simplified barcode
Given a bar code from this <http://www.mathworks.com/matlabcentral/cody/problems/602-make-a-simplified-bar-code exercise>: Re...

mehr als 12 Jahre vor

Gelöst

Make a simplified barcode
Given an integer to encode, make a barcode using the following encoding scheme: * The bar code is made from the binary versio...

mehr als 12 Jahre vor

Gelöst

Getting the absolute index from a matrix
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to get the <http://www.ma...

mehr als 12 Jahre vor

Gelöst

Getting the row and column location from a matrix
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to get <http://www.mathwo...

mehr als 12 Jahre vor

Gelöst

Getting logical indexes
This is a basic MATLAB operation. It is for instructional purposes. --- Logical indexing works like this. thresh = 4...

mehr als 12 Jahre vor

Gelöst

Make a random, non-repeating vector.
This is a basic MATLAB operation. It is for instructional purposes. --- If you want to get a random permutation of integer...

mehr als 12 Jahre vor

Gelöst

Getting the indices from a vector
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to <http://www.mathworks....

mehr als 12 Jahre vor

Gelöst

Flag largest magnitude swings as they occur
You have a phenomenon that produces strictly positive or negative results. delta = [1 -3 4 2 -1 6 -2 -7]; Marching thr...

mehr als 12 Jahre vor

Gelöst

Pull the variable y_correct from the Caller's Workspace
*Description* This highlights a very easy to use and high-scoring cheat that can be used on almost all Cody questions.

mehr als 12 Jahre vor

Gelöst

Free passes for everyone!
_Simply return the name of the coolest numerical computation software ever_ *Extra reward* (get a _freepass_): As an addit...

mehr als 12 Jahre vor

Gelöst

Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

mehr als 12 Jahre vor

Gelöst

Word Counting and Indexing
You are given a list of strings, each being a list of words divided by spaces. Break the strings into words, then return a maste...

mehr als 12 Jahre vor

Gelöst

2 b | ~ 2 b
Given a string input, output true if there are 2 b's in it, false if otherwise Examples: 'Macbeth' -> false 'Publius Cor...

fast 13 Jahre vor

Gelöst

Rotate a Matrix by 90 degrees
Rotate a Matrix by 90 degrees Example: If the input is: X = 1 2 3 4 5 6 7 8 9 ...

fast 13 Jahre vor

Gelöst

Compute a dot product of two vectors x and y
x and y are input vectors, d is a number and contains their dot product

fast 13 Jahre vor

Gelöst

Filter AC, pass DC
Input x is the sampled signal vector, may have both AC and DC components. Output vector y should not contain any AC component. ...

fast 13 Jahre vor

Gelöst

Number of 1s in a binary string
Find the number of 1s in the given binary string. Example. If the input string is '1100101', the output is 4. If the input stri...

fast 13 Jahre vor

Gelöst

Determine Whether an array is empty
Input a matrix x, output y is TRUE if x is empty, otherwise FALSE.

fast 13 Jahre vor

Gelöst

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...

fast 13 Jahre vor

Beantwortet
Does MATLAB require a 2nd REGEXP to match data values obtained from a previous REGEXP?
The quick solution to the objected you stated is to use a more specific regular expression, i.e. if you only want the values 2 a...

fast 13 Jahre vor | 0

Gelöst

Convert a vector into a number
This is a sub problem related to this problem: <http://www.mathworks.com/matlabcentral/cody/problems/621-cryptomath-addition>...

fast 13 Jahre vor