Answered

Accessing specific values in every matrix in a cell array

Sure, use cellfun: A = {[1,2,3],[4,5,6],[7,8,9];[10,11,12],[13,14,15],[16,17,18]}; B = cellfun(@(x) x(3), A) disp(B)

Accessing specific values in every matrix in a cell array

Sure, use cellfun: A = {[1,2,3],[4,5,6],[7,8,9];[10,11,12],[13,14,15],[16,17,18]}; B = cellfun(@(x) x(3), A) disp(B)

3 years ago | 1

Answered

Use EV Battery Cooling System

It sounds like the file is not on MATLABs search path. https://www.mathworks.com/help/matlab/matlab_env/what-is-the-matlab-searc...

Use EV Battery Cooling System

It sounds like the file is not on MATLABs search path. https://www.mathworks.com/help/matlab/matlab_env/what-is-the-matlab-searc...

3 years ago | 0

Answered

How do you create a matrix Aij where each value is determined by a formula?

It sounds like a for loop would build your matrix nicely: n = 2000; sz_i = n; sz_j = n; A = zeros(sz_i, sz_j); % Preallocate...

How do you create a matrix Aij where each value is determined by a formula?

It sounds like a for loop would build your matrix nicely: n = 2000; sz_i = n; sz_j = n; A = zeros(sz_i, sz_j); % Preallocate...

3 years ago | 0

Answered

Simulink asynchronous generator voltage input clarification

Hi Abd, For an induction machine to operate, you must be able to generate a rotating field on both the rotor and stator. The fi...

Simulink asynchronous generator voltage input clarification

Hi Abd, For an induction machine to operate, you must be able to generate a rotating field on both the rotor and stator. The fi...

3 years ago | 1

| accepted

Answered

What is the difference between in64, int32, and int8. Are there anymore 'int' functions? (int means integer right?)

Difference between %d, %f, or any other %? These are formatting control codes. %d prints a number in decimal (base 10) format, ...

What is the difference between in64, int32, and int8. Are there anymore 'int' functions? (int means integer right?)

Difference between %d, %f, or any other %? These are formatting control codes. %d prints a number in decimal (base 10) format, ...

3 years ago | 0

| accepted

Answered

How to display a Y value

For interactive use of the graph, consider use of the datatips functionality. In R2018 and above, if you hover your cursor over ...

How to display a Y value

For interactive use of the graph, consider use of the datatips functionality. In R2018 and above, if you hover your cursor over ...

3 years ago | 0

| accepted

Answered

index exceeds matrix dimensions and the toolbox code error

I'd guess that n is larger than the size of P. In the first couple lines it seems that P only gets allocated if the swing angle ...

index exceeds matrix dimensions and the toolbox code error

I'd guess that n is larger than the size of P. In the first couple lines it seems that P only gets allocated if the swing angle ...

3 years ago | 0

Answered

How to apply modifiers to error messages

You've almost got it. The TeX formatting is correct. You need to include the interpreter and modality of the window in a struct ...

How to apply modifiers to error messages

You've almost got it. The TeX formatting is correct. You need to include the interpreter and modality of the window in a struct ...

3 years ago | 1

| accepted

Answered

How to impulse response including unit step function

The Heaviside step function is defined Substitute a logical check on t for u(t). Should be extendable to a shifted step fu...

How to impulse response including unit step function

The Heaviside step function is defined Substitute a logical check on t for u(t). Should be extendable to a shifted step fu...

3 years ago | 0

Answered

How Do I Determine which Group Variables Correspond to the Results of SplitApply

Consider using the second argument output from findgroups? [G,ID] = findgroups(A) also returns the unique values for each group...

How Do I Determine which Group Variables Correspond to the Results of SplitApply

Consider using the second argument output from findgroups? [G,ID] = findgroups(A) also returns the unique values for each group...

3 years ago | 0

| accepted

Answered

Incorporate Incremental Vector into an Equation

Use the elementwise operators (preceed divide/multiply with a dot). https://www.mathworks.com/help/matlab/matlab_prog/array-vs-...

Incorporate Incremental Vector into an Equation

Use the elementwise operators (preceed divide/multiply with a dot). https://www.mathworks.com/help/matlab/matlab_prog/array-vs-...

3 years ago | 0

Answered

count of non zero elements of a row vector in a loop

Try the nnz function. It sounds like you're trying to count the number of nonzero elements in each row? Use arrayfun to apply t...

count of non zero elements of a row vector in a loop

Try the nnz function. It sounds like you're trying to count the number of nonzero elements in each row? Use arrayfun to apply t...

3 years ago | 1

| accepted

Answered

Using CLEAR ALL usually decreases code performance and is often unnecessary

It sounds like you're seeing this in the Editor's Linter coding tips? These are all "clear the slate" commands, Use clc to clea...

Using CLEAR ALL usually decreases code performance and is often unnecessary

It sounds like you're seeing this in the Editor's Linter coding tips? These are all "clear the slate" commands, Use clc to clea...

3 years ago | 1

Answered

Can I use boolean of a variable on a column of another variable

Hi, to confirm/rephrase, you're looking to extract 16 separate arrays, each one corresponding to the case where the response mat...

Can I use boolean of a variable on a column of another variable

Hi, to confirm/rephrase, you're looking to extract 16 separate arrays, each one corresponding to the case where the response mat...

3 years ago | 0

Answered

How To Assign Operator/Variables with a value

I'm not familiar with LGP. Consider a cell array to hold the chromosome? C = {X, 2, @times, 4} Using the operator definition...

How To Assign Operator/Variables with a value

I'm not familiar with LGP. Consider a cell array to hold the chromosome? C = {X, 2, @times, 4} Using the operator definition...

3 years ago | 0

Answered

Creating a vector from recursive elements of another vector

Welcome to MATLAB! Matlab will allocate the memory for you on the fly, so this is a one line operation, no need for a loop :) ...

Creating a vector from recursive elements of another vector

Welcome to MATLAB! Matlab will allocate the memory for you on the fly, so this is a one line operation, no need for a loop :) ...

3 years ago | 0

| accepted

Solved

Rosenbrock's Banana Function and its derivatives

Write a function to return the value of <http://en.wikipedia.org/wiki/Rosenbrock_function Rosenbrock's two-dimensional banana fu...

3 years ago

Solved

Permutation Via Multiplication

Given two numbers a and b, determine if the product ab is a permutation of the digits of a. For example, this is always true for...

3 years ago

Solved

Whole Number Un-Concatenator

Write a function that accepts an integer and an index digit and returns a vector containing two integers which are the leading a...

3 years ago

Solved

Whole Number Concatenator

Write a function that concatenates whole numbers. For example: numcat(111,222) should return 111222 numcat(1,2,3,4,5) s...

3 years ago

Solved

Find the maximum number of decimal places in a set of numbers

Given a vector or matrix of values, calculate the maximum number of decimal places within the input. Trailing zeros do not coun...

3 years ago

Solved

Make roundn function

Make roundn function using round. x=0.55555 y=function(x,1) y=1 y=function(x,2) y=0.6 y=function(x,3) ...

3 years ago

Solved

Rounding off numbers to n decimals

Inspired by a mistake in one of the problems I created, I created this problem where you have to round off a floating point numb...

3 years ago

Solved

Matlab Basics - Rounding III

Write a script to round a large number to the nearest 10,000 e.g. x = 12,358,466,243 --> y = 12,358,470,000

3 years ago

Solved

Matlab Basics - Rounding II

Write a script to round a variable x to 3 decimal places: e.g. x = 2.3456 --> y = 2.346

3 years ago

Solved

Check that number is whole number

Check that number is whole number Say x=15, then answer is 1. x=15.2 , then answer is 0. <http://en.wikipedia.org/wiki/Whole...

3 years ago

Solved

MATLAB Basic: rounding IV

Do rounding towards plus infinity. Example: -8.8, answer -8 +8.1 answer 9 +8.50 answer 9

3 years ago

Solved

MATLAB Basic: rounding III

Do rounding towards minus infinity. Example: -8.8, answer -9 +8.1 answer 8 +8.50 answer 8

3 years ago

Solved

MATLAB Basic: rounding II

Do rounding nearest integer. Example: -8.8, answer -9 +8.1 answer 8 +8.50 answer 9

3 years ago

Solved

MATLAB Basic: rounding

Do rounding near to zero Example: -8.8, answer -8 +8.1 answer 8

3 years ago