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Call variables in for loop
To do this like you're attempting requires the use of the eval function, but be very careful in its use. Google 'eval matlab' fo...

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Measuring and Changing
if p1 and p2 are 2 element vectors: 1: d1 = sqrt(sum((p1-p2).^2)); 2: No explanation should be required. 3: d...

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Tell me the slope
Tell me the slope, given a vector with horizontal run first and vertical rise next. Example input: x = [10 2];

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Bottles of beer
Given an input number representing the number of bottles of beer on the wall, output how many are left if you take one down and ...

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Projectile connected by springs model
This is probably the 3rd or 4th submission of this same exact problem. Please review the question guide: <http://www.mathwork...

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To solve double integral
try using quad2d: <http://www.mathworks.com/help/techdoc/ref/quad2d.html>

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Question


plot data in from structure of data points with limits
I have a structure of datapoints, each of which is a structure of variables. I have created a simple function that will do a sca...

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réponse

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Numerical Inputs to Solve and Using the Output value
The problem may be that you're expecting a single value, but solve will return 2 values because it's actually quadratic. What...

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Loop Problem
You have two loops when you just need one. Essentially you're looping through the entire binary variable for each p value, but e...

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Surface plot problem,
You're not feeding the proper inputs into surfc. surfc(x,y,z,c) requires x be a vector of length(n), y a vector of length(m), si...

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Project Euler: Problem 6, Natural numbers, squares and sums.
The sum of the squares of the first ten natural numbers is, 1^2 + 2^2 + ... + 10^2 = 385 The square of the sum of the first ...

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Help with plotting multiple line complete with legends.
Tim, See a previous answer that I helped a guy out with here: <http://www.mathworks.com/matlabcentral/answers/29799-adding...

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GUIDE
You can't put a 5 character string into a single spot in a matrix. You'll need to use cell arrays to do what you're trying to do...

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A résolu


All capital?
Are all the letters in the input string capital letters? Examples: 'MNOP' -> 1 'MN0P' -> 0

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radius of a spherical planet
you just measured its surface area, that is the input.

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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]

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inner product of two vectors
inner product of two vectors

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Quote Doubler
Given a string s1, find all occurrences of the single quote character and replace them with two occurrences of the single quote ...

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Which values occur exactly three times?
Return a list of all values (sorted smallest to largest) that appear exactly three times in the input vector x. So if x = [1 2...

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Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

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Nearest Numbers
Given a row vector of numbers, find the indices of the two nearest numbers. Examples: [index1 index2] = nearestNumbers([2 5 3...

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Target sorting
Sort the given list of numbers |a| according to how far away each element is from the target value |t|. The result should return...

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Project Euler: Problem 10, Sum of Primes
The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17. Find the sum of all the primes below the input, N. Thank you <http:/...

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Project Euler: Problem 2, Sum of even Fibonacci
Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 te...

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plotting in a loop - new figure window
how about: clear all Data.S1 = struct('data1',rand(12,1),'data2',rand(12,1),'data3',rand(12,1)); Data.S2 = struct('d...

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request user input for a number of inputs
There are several ways to do this, but if you're wanting cell arrays, I'd do something like this: for i = 1:length(Location...

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A résolu


Project Euler: Problem 1, Multiples of 3 and 5
If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23...

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Increment a number, given its digits
Take as input an array of digits (e.g. x = [1 2 3]) and output an array of digits that is that number "incremented" properly, (i...

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Factorize THIS, buddy
List the prime factors for the input number, in decreasing order. List each factor only once, even if the factorization includes...

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Too mean-spirited
Find the mean of each consecutive pair of numbers in the input row vector. For example, x=[1 2 3] ----> y = [1.5 2.5] x=[1...

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