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Chris


17 total contributions since 2015

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Answered
Index in position 2 exceeds array bounds (must not exceed 1).
Your first line is making "elem" a scalor but the if test is using it as a martix; this does not work.

4 hours ago | 0

Answered
Deleting overlapping lines in a plot
.fig files retain Children information of the figure; you can loop over the Children and delete based on color.

5 hours ago | 0

Answered
How to speed up function approximation?
I dont have those toolboxes but often you can start an optimization problem with a randomly selected sub-set of data run for a s...

6 hours ago | 0

Answered
How to ignore an element(s) in a vector or matrix
You can specify a sub compontent of a matrix but the resulting matrix math needs to remain logical >> theta = [1,2,3,4]; alpha ...

7 hours ago | 0

Answered
Is it possible to add row vectors into a matrix with a for loop?
A loop is not needed for your simple demo >> mat = [sample1; sample2] mat = 1 2 3 4 5 6 But yes y...

7 hours ago | 0

| accepted

Answered
how to pick up all combination of numbers from multiple vectors
I use allcomb from the Exchange - works great. Works with chars too. It uses ndgrid under the hood and is probably mostly a pa...

5 days ago | 0

Answered
How to create an empty edit field (numeric) in app designer
Can you make the input a text field and reject anything that does not convert to a number?

6 days ago | 0

Answered
calculate difference of euler angles between two dynamic moving objects
Are you trying to compare the rotation matries directly or are you compairing the euler angles? I am not sure you can use the m...

7 days ago | 0

Question


Passing data into and out of an App
I am new to Apps and would like to make sure I am clear on how to it is best to get data into and out of an App. I need to be a...

7 days ago | 0 answers | 0

0

answers

Question


Initialize a model in steady state
I have a Simulink model of an aircraft that I would like to have start in a steady state trim condition before the model runs. ...

4 months ago | 0 answers | 0

0

answers

Question


Can I disable linear indexing?
I am working with a large number of matrices of varying dimensions and have many times typed in the wrong number of indexes when...

10 months ago | 2 answers | 0

2

answers

Question


Can an APP access the calling functions workspace?
If I execute an APP can it access the workspace of a function I am debugging? I am trying to write an APP that will plot my c...

1 year ago | 0 answers | 0

0

answers

Solved


First non-zero element in each column
For a given matrix, calculate the index of the first non-zero element in each column. Assuming a column with all elements zero ...

2 years ago

Solved


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,...

2 years ago

Solved


Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock.
Submit your answer to this problem a multiple of 5 seconds after the hour. Your answer is irrelevant; the only thing that matte...

2 years ago

Solved


How to subtract?
*&plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn* * Imagine you need to subtract one...

2 years ago

Question


plot legends with custom symbols
I am doing something like >> XX = 0; YY = 0; >> h1 = plot( XX, YY, ['.y'] ); hold on >> set(h1, 'markersize', 30); ...

4 years ago | 1 answer | 1

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