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Differential equations I
Given a function handle |f| an initial condition |y0| and a final time |tf|, solve numerically the differential equation dy...

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Make a Plot with Functions
Make a plot and test

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Monte-Carlo integration
Write a function that estimates a d-dimensional integral to at least 1% relative precision. Inputs: * d: positive integer....

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The Birthday Phenomenon
First off, leap years are not being considered for this. In fact the year that people are born shouldn't be taken into considera...

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Throwing Dice - Will You Be Eaten By The Dragon?
You and a dragon have agreed to let dice rolls determine whether it eats you or not. The dragon will roll a single die, of x ...

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Chess probability
The difference in the ratings between two players serves as a predictor of the outcome of a match (the <http://en.wikipedia.org/...

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Calculate Amount of Cake Frosting
Given two input variables r and h, which stand for the radius and height of a cake, calculate the surface area of the cake you n...

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Solve a System of Linear Equations
Example: If a system of linear equations in x₁ and x₂ is: 2x₁ + x₂ = 2 x₁ - 4 x₂ = 3 Then the coefficient matrix (A) is: 2 ...

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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_numb...

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

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

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

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

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Find the nearest two values in all grid cells to a specified value across a 3D matrix
Why squeeze the indices? Just use them to index (for which you need sub2ind). As for the second closest: the easiest way is to ...

3년 초과 전 | 0

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Calling the error function does not print the line number in r2022b
I personally use my own customized versions of error and warning. They take an options struct as the first argument to determine...

3년 초과 전 | 2

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Pseudorandom character matrix generation
If you want a 10x10 char array, you can also use indexing: source = 'bdpq'; Array = source(randi(end,[10 10]))

3년 초과 전 | 0

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If not with a xlsx file
You should have used isempty in your current code: if ~isempty(app.filename) For the test you now want to do, you should extra...

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Saving file causes glitch
As a temporary workaround you can use this: edit my_script.m % should give you a popup asking if you want to create the file O...

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Fitting data from file
You can specify those parameters, but what is much more effective is providing good initial guesses (and not mixing up x and y):...

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get alpha (color) value of a line
I have no clue why this is hidden, but converting the object to a struct and hunting for a few appropriate candidates I found th...

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Appending mixed types to strings seems a bit tricky. Is this the intended behaviour?
It helps to do this step by step, which show that (while unintuitive), this is intended behavior. Matlab evaluates code from le...

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How to assign matrices to an array in a for loop
You can use a cell array: for i = 1:5 matrices{i} = [i*1 i*2 i*3; i*4 i*5 i*6; i*7 i*8 i*9]; end

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APP Designer code convert to CPP code
Do you need to generate the C++ code, or is it also fine to end up a stand-alone executable? As the message indicates, UIFigure...

3년 초과 전 | 0

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Difference between "||" and "&&" in my loop
The or operator means and/or, just like it does in mathematics. You can use the xor function (although no operator or short-circ...

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How to reduce the file size of a saved histogram figure
You have two options that I'm aware of: # Change the underlying data so you reproduce the same bins with fewer data points. ...

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