# Preethi

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**Content Feed**

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,...

4 years ago

Solved

Return the first and last character of a string

Return the first and last character of a string, concatenated together. If there is only one character in the string, the functi...

4 years ago

Solved

Reverse the vector

Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

4 years ago

Solved

Length of the hypotenuse

Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<http://upload....

4 years ago

Solved

Maximum value in a matrix

Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.

4 years ago

Solved

Flip the vector from right to left

Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...

4 years ago

Solved

Vector creation

Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

4 years ago

Solved

Doubling elements in a vector

Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

4 years ago

Solved

Whether the input is vector?

Given the input x, return 1 if x is vector or else 0.

4 years ago

Solved

Get the length of a given vector

Given a vector x, the output y should equal the length of x.

4 years ago

c++ and matlab

hi, Use mex check this link https://in.mathworks.com/help/matlab/ref/mex.html?searchHighlight=mex%20c%20code&s_tid=doc_srch...

4 years ago | 0

| accepted

how to add label to diagram plotted using plot function?

hi, hope this helps xlabel('X axis'); % to label X axis Ylabel('Value'); % to label Y axis title('Name'); %to provide title ...

4 years ago | 0

| accepted

Unable to open figure window

hi, hover near MATLAB icon in task bar, right click and then select Maximize

4 years ago | 0

"Index in position 1 is invalid. Array indices must be positive integers or logical values."

Initialize variable i with 1, before using it i=1;

4 years ago | 0

Question

read data from word based on section heading

Hi all, I want to read data from word based on the section heading. I have multiple documents and section header is same for al...

4 years ago | 0 answers | 0

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answershow I do it. the function is called a string is passes a numbr

hi, check this function test_preethi(str) persistent i if isempty(i) i=1; else if i <=5 sprintf('%s%d',...

4 years ago | 0

Solved

How to subtract?

*± ± ± ± ± ± ± ± ± ± ±* * Imagine you need to subtract one...

4 years ago

Solved

Produce a Fibonacci sequence

Construct a diagram that generates the Fibonacci sequence: 1, 1, 2, 3, 5, 8, 13, 21, 34.....up to 377 The Fibonacci sequ...

4 years ago

Solved

Make a full wave rectifier

Produce a full wave rectifier waveform for the given sine wave source. For a sine wave input, the output of the full wave rec...

4 years ago

Solved

Make a half wave rectifier

Produce a signal that outputs the given sine wave source when it is greater than zero and outputs zero when it is less than zero...

4 years ago

Simulink While Loop - recording iteration-by-iteration parameters

hi, Have you tried using assignin() function?

4 years ago | 0

how to select values of nx3 matrix where its index is equal to a value in other matrix

hi, try this i=1 for j=1:1:fid if j==fnew(j) FF(i)=f(j) i=i+1 end end sin...

4 years ago | 0

Markowitz optimization weights code

hi, try using csvread() function

4 years ago | 0

| accepted

Adding Bar graph with another plot, convert the bar graph with a color axis, tittle in one figure?

hello, hope this is helpful x = [0 0.2 0.4 0.7 0.8 1]; % start of bar y = zeros(length(x),1); dx = diff([x 1]); % ...

6 years ago | 1

| accepted

Plot two different data having the same xy-location

hi, you can use hold on functionality or plot the data in different series. Hope the below link is useful. <http://in.mathwo...

6 years ago | 0