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Question

Creating an array of structs and using the field directly?

Hey guys. I'm wondering if there is a workaround for doing something like this: a = {[struct('field',1) struct('field',2)]....

nästan 9 år ago | 2 answers | 0

### 2

answersSolved

Remove any row in which a NaN appears

Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

nästan 9 år ago

Solved

Sum all integers from 1 to 2^n

Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

nästan 9 år ago

Solved

Weighted average

Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

nästan 9 år ago

Solved

Create times-tables

At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

nästan 9 år ago

Solved

Determine whether a vector is monotonically increasing

Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

nästan 9 år ago

Solved

Swap the first and last columns

Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

nästan 9 år ago

Solved

Pizza!

Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

nästan 9 år ago

Solved

Find all elements less than 0 or greater than 10 and replace them with NaN

Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

nästan 9 år ago

Solved

Triangle Numbers

Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

nästan 9 år ago

Solved

Select every other element of a vector

Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

nästan 9 år ago

Question

Nonrectangular grid between two lines

Hey guys, this might be a simple problem but I'm going crazy here: Assume you have two lines or direction vectors r,s from t...

mer än 9 år ago | 1 answer | 0

### 1

answerQuestion

MEX function is slower than matlab script. Profiling possiblilites?

Hey guys. I am working on a toolbox for realtime classification of driving situations. For this purpose I train a least squares...

ungefär 10 år ago | 1 answer | 2

### 1

answerQuestion

Include libsvm in simulink, s function

Hello guys. I'm wondering how complicated it would be to call libsvm [ http://www.csie.ntu.edu.tw/~cjlin/libsvm/ ] from a si...

mer än 10 år ago | 2 answers | 0

### 2

answersQuestion

Asynchronous data acquisition & filtering

Hey guys, I need your help again :( Currently I'm using a real time windows target model which receives data via the strea...

ungefär 11 år ago | 0 answers | 0

### 0

answersSolved

Determine if input is odd

Given the input n, return true if n is odd or false if n is even.

mer än 11 år ago

Solved

Find the sum of all the numbers of the input vector

Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

mer än 11 år ago

Solved

Times 2 - START HERE

Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

mer än 11 år ago

Solved

Column Removal

Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

mer än 11 år ago

Solved

Make the vector [1 2 3 4 5 6 7 8 9 10]

In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

mer än 11 år ago

Question

How to generally use the stream input port in a real-time windows target model?

Hey guys, I'm wondering, how I can use the stream input port (via a generic serial interface) in a real-time windows target m...

mer än 11 år ago | 1 answer | 0

### 1

answerQuestion

Understanding the rate transition block in realtime windows target

Hey guys, I have a few questions regarding the 'rate transition block' in simulink. I understand, that a fast sampled sign...

mer än 11 år ago | 1 answer | 0

### 1

answerQuestion

Video processing model can't be compiled by real-time windows target

Hello guys, I've got a strange problem here. What I try to do is creating code for the real-time windows target from a model ...

mer än 11 år ago | 2 answers | 0

### 2

answersQuestion

Using function handles from *.m file in simulink model

Hey all, I wonder, how i can use functions (or function handles) which are defined in an *.m script file in a simulink model....

mer än 11 år ago | 2 answers | 0

### 2

answersQuestion

Finding similar symbolic expressions in a vector

Hey guys, i have following problem: Let there be a long vector containing symbolic expressions. To reduce the vector length i...

nästan 12 år ago | 1 answer | 0

### 1

answerQuestion

Plot system reactions in time domain, not lsim

Hey guys, I'm searching for a way to plot system reactions in the time domain by using transfer functions. For example: ...

mer än 12 år ago | 0 answers | 0