Question

Partition Domain Given Data of the Form w = f(x,y,z)
I have 4 vectors of size 1 x 15e8. The data is of the form w = f(x,y,z) I want to break the domain of x,y,z into cells or...

11 years ago | 1 answer | 0

1

answer

Question

Finding Consecutive True Values in a Vector
I want to sum consecutive 1 values given a logical input vector. An example of input and output is below. Notice that the outp...

12 years ago | 4 answers | 0

4

answers

Question

Why does MATLAB add the MATLABROOT\bin directory to my path?
When MATLAB installs, it always add its "bin" directory to my path. Why? Example: The end of my path has "C:\MathWorks\MAT...

12 years ago | 1 answer | 0

1

answer

Question

How do I plot one timeseries vs another from the command line?
I have two timeseries. I want to plot them vs each other in an XY plot. Is this possible to do this like in the tstool "XY Plo...

12 years ago | 2 answers | 0

2

answers

Question

Why does tab complete not work for user written functions that except filenames?
Why does tab complete not work for user written functions that except filenames? function testFunction(file) di...

12 years ago | 2 answers | 0

2

answers

Answered
While loop for the elements of an array
See the lines below. This will work. a=[1 1 1 1 1 1 1 10 1 1 1 1 1 1 12 1 1 1 1 3]; i = 1; enas=0; while a(i)==1 % ...

12 years ago | 0

Answered
detecting Excel files without Excel extension
I wrote a function that uses the Excel ActiveX server. It is still slow like MATLAB's xlsfinfo. However, it gains a little spe...

12 years ago | 0

Question

detecting Excel files without Excel extension
I need to be able to identify an Excel file without using xlsfinfo. It is a VERY slow function. Without it, my algorithm runs ...

13 years ago | 3 answers | 1

3

answers

Solved

Interpolator
You have a two vectors, a and b. They are monotonic and the same length. Given a value, va, where va is between a(1) and a(end...

13 years ago

Solved

The Goldbach Conjecture, Part 2
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

13 years ago

Solved

Right and wrong
Given a vector of lengths [a b c], determines whether a triangle with those sides lengths is a right triangle: <http://en.wikipe...

13 years ago

Solved

Program an exclusive OR operation with logical operators
Program an exclusive or operation *without* using the MATLAB function xor. Use logical operators like |, &, ~, ... instead. ...

13 years ago

Solved

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 ...

13 years ago

Solved

given 3 sides, find area of this triangle
1:3 -> 0; 3:5 -> 6

13 years 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];

13 years ago

Solved

Given an unsigned integer x, find the largest y by rearranging the bits in x
Given an unsigned integer x, find the largest y by rearranging the bits in x. Example: Input x = 10 Output y is 12 ...

13 years ago

Solved

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...

13 years ago

Solved

Love triangles
Given a vector of lengths [a b c], determines whether a triangle with non-zero area (in two-dimensional Euclidean space, smarty!...

13 years ago

Solved

All capital?
Are all the letters in the input string capital letters? Examples: 'MNOP' -> 1 'MN0P' -> 0

13 years ago

Solved

surface of a spherical planet
you just discovered its circumference, that is the input.

13 years ago

Solved

Find the sum of the elements in the "second" diagonal
Find the sum of the elements in the diagonal that starts at the top-right corner and ends at the bottom-left corner.

13 years 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 ...

13 years ago

Solved

Factorize THIS, buddy
List the prime factors for the input number, in decreasing order. List each factor only once, even if the factorization includes...

13 years ago

Solved

Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

13 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 ...

13 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...

13 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...

13 years ago

Solved

inner product of two vectors
inner product of two vectors

13 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

13 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 = ...

13 years ago