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PA00


Active since 2011

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Swap the input arguments
Write a two-input, two-output function that swaps its two input arguments. For example: [q,r] = swap(5,10) returns q = ...

12 years ago

Solved


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

12 years ago

Solved


Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...

12 years ago

Solved


inner product of two vectors
inner product of two vectors

12 years ago

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Roll the Dice!
*Description* Return two random integers between 1 and 6, inclusive, to simulate rolling 2 dice. *Example* [x1,x2] =...

12 years ago

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Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

12 years ago

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Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

12 years ago

Solved


Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

12 years ago

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Is my wife right?
Regardless of input, output the string 'yes'.

12 years ago

Solved


Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

12 years ago

Solved


Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

12 years ago

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Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

12 years ago

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Add two numbers
Given a and b, return the sum a+b in c.

12 years ago

Solved


Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

12 years ago

Solved


Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

12 years ago

Solved


Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

12 years ago

Question


Anyway to turn off Excel automatic calculation by a MatLab command for faster export ?
Hello, I am using a excel template file to which I export data. The amount of data is big so I use xlswrite1 command from: ...

12 years ago | 1 answer | 1

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Answered
How to find the functions called by another function
I would try using the profile function. You can either acess the Profiler under the Desktop (Desktop->Profiler) on the menu.

13 years ago | 1

Answered
Solving [K]{x}={b} efficiently, when [K] is symmetric!
In general FEM matrix’s are symmetric but not fully populated, also if you write your matrix with attention to the FEM mesh you ...

13 years ago | 1

Answered
Discrete Optimization
Can you expose more your problem? You can use "bintprog" when state variables are "1" or "0" like on or off but the method of op...

13 years ago | 0

Answered
opinion about matlab
Looks like your professors (with all due respect) live in the dark ages. The answer about matlab being a mere calculator represe...

13 years ago | 1

Question


how to create a matrix named after a string and be able to use it afterwards
Hello, first thanks to any help you can give me. I would like to build a m*n matrix of zeros with its var named by a string and...

13 years ago | 1 answer | 0

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