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How to draw 2D graph of 4 variables
try this function: quiver(X,Y,VX,Vy); you can add this graph to the previously created graph by using hold on statement. ht...

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Help With Graphing on the Same Plot
% Trohpic Cascade to calculate the changes in population in scallops and % cownose rays based on interactions with each other ...

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Help With Graphing on the Same Plot
The second figure command, creates a new figure, you can comment it out: % The second graph %figure; plot(R); xlabel('time ...

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Topographic map with gradient vector
You can look at this: https://www.mathworks.com/help/matlab/creating_plots/display-quiver-plot-over-contour-plot.html

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Using DisplayName Within a Loop
col_sim = {'-ro', '-bs', '-*k','-gx'}; % symbols for each curve of the plot (simulated data) col_exp = {'ro', 'bs', '*k',...

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finding the mean based on a specific value in other column
You can find the rows with the first condition and the other rows for the second condition. The intersection of the two rows, ar...

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Why does my output turn out like this certain times I run my code?
in the first if statement, add a simi-colon ath the end: if (a>b) limit = b; end Also, you can simplify the firs...

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Function is not working
coror = relor + (relor - 180).*(relor > 90) + (relor + 180) .* (relor < -90);

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frequency based on dictionary
you can use unique function along with badOfWords https://www.mathworks.com/help/textanalytics/ref/bagofwords.html

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What is the process in converting 45 mps to mph on matlab?
x = input('MPH value? '); % check 3.6? is it correct? y= x*3.6; printf ('kilometer per second %f\n',y) z=x.*2.23694; fprint...

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How can I assign a value to variable using buttons?
fig = uifigure; Bolt1 = uibutton(fig,'Text', 'Bolt 1','Position',[50,380, 100, 22],'ButtonPushedFcn', 'button_state=1;button_st...

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Loop Updating Vectors for Number of Iterations
Simply use A = [3 2 3; 5 5 6; 9 8 9]; b = [1; 2; 3]; x=b; for k=1:200 x=A\x; end

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how to correctly get values for stress for Y >82 values should be close to zero at Y = 88.25
You can use vectorized if statement: Q = Q2 .* (Y >= 82) + Q1 .* (Y < 82); stress = abs(V.*Q)/(i*t);

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How do I write a script that calculates and prints all values ​​for N according to the following expressions and limits?
N=1; % sum function uses an internal loop % find the first N that sum is >= 1.6 while sum(1./[1:N].^2) < 1.6 N = N+1; e...

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After a certain time for loop speed slow down?
You can create A without having two nested loops: E0=10; [km, jm] = meshgrid(1:1000, 1:1000); A= E0*exp(-65*((km - 500).^2 +...

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Setting up equation with variables without values
Use (1/2)*Lp % instead of 1/2Lp

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Bisection method in matlab
clc clear lc=3; lp=3; w=160; T= 700; f=@(d) (w*lc*lp/(d*sqrt(lp^2-d^2)))-T; xl=input('enter the value for Xl '); xu=input(...

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How to find the index of the variable in my For Loop when a condition is met
[~,ind] = find(diff(nr)==0) % print indices for i = ind fprintf("%d is adjacent to a number of equal value\n", i) end

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How to find the index of the variable in my For Loop when a condition is met
Use [nf, ind] = find(nr == i); ind contains the index with the given condition

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Relative ratio of "1" in binary number
Input(n) is positive integer number Output(r) is (number of "1" in binary input) / (number of bits). Example: * n=0; r=...

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Binary code (array)
Write a function which calculates the binary code of a number 'n' and gives the result as an array(vector). Example: Inpu...

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Converting binary to decimals
Convert binary to decimals. Example: 010111 = 23. 110000 = 48.

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Find out sum and carry of Binary adder
Find out sum and carry of a binary adder if previous carry is given with two bits (x and y) for addition. Examples Previo...

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Convert given decimal number to binary number.
Convert given decimal number to binary number. Example x=10, then answer must be 1010.

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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...

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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) ...

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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...

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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

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

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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...

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