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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.
ungefär 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 ...
ungefär 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:...
ungefär 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 ...
ungefär 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...
ungefär 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...
ungefär 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...
ungefär 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: ...
ungefär 12 år ago | 0 answers | 0