已解决

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

9 years 前

已解决

Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

9 years 前

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Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

9 years 前

已解决

Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

9 years 前

已解决

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...

9 years 前

已解决

Matrix of almost all zeros, except for main diagonal
Write a program to input an integer n and build a n-by-n matrix with the numbers 1,2,...,n on the main diagonal and zeros elsewh...

9 years 前

问题

Matrix of almost all zeros, except for main diagonal
Write a program to input an integer n and build a n-by-n matrix with the numbers 1,2,...,n on the main diagonal and zeros elsewh...

9 years 前 | 2 | 181 个解题者

已解决

Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

9 years 前

已解决

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...

9 years 前

已解决

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 ...

9 years 前

已解决

Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

9 years 前

已解决

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 ...

9 years 前

已解决

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

9 years 前

已解决

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...

9 years 前

已解决

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

9 years 前

已解决

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

9 years 前

已解决

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 ...

9 years 前

已解决

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...

9 years 前

已解决

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:...

9 years 前

已解决

Compute Fibonacci Number
Compute the _n_-th Fibonacci Number f(0) = 0, f(1) = 1, f(2) = 1, f(3) = 2, ... f(42) = 267914296

9 years 前

已解决

Create a two dimensional zero matrix
You have to create a zero matrix of size (mxn) whose inputs are m and n and the elements of your matrix should be zeros. Exam...

9 years 前

提问

Saving (in a matrix) the elapsed time and number of iterations for a large number of cases
I have a program that outputs the **number of iterations** and a **test value**, given inputs **A1,A2,A3,A4**. I want to run ...

9 years 前 | 1 个回答 | 0

1

个回答

提问

MATLAB: 2-D plot with z-axis given in color
My friends and I have been struggling to generate a 2-D plot in MATLAB with eta_1 and eta_2 both varying in 0:0.01:1 and the z...

9 years 前 | 1 个回答 | 0

1

个回答

提问

Solving a nonlinear system of equations, with constraint of nonnegative solutions
I would like to solve a nonlinear system of 9 equations, with the constraint that the solutions must be nonnegative. This pr...

9 years 前 | 1 个回答 | 0

1

个回答

提问

Seemingly unrelated error message: In an assignment A(I) = B, the number of elements in B and I must be the same.
Hello, I am trying to solve a ODE BVP using bvp4c. I cannot figure out why I am getting this error: In an assignmen...

10 years 前 | 1 个回答 | 0

1

个回答

提问

How to draw line connecting minima of graphs in the same plot space?
I would like to draw a line connecting the minima of 50 graphs in the same plot space. I am not sure what to put under %%P...

10 years 前 | 1 个回答 | 0

1

个回答

提问

Minimizing a multivariable function in several variables in MATLAB
I need to minimize a nonlinear function subject to constraints, where everything is a parameter - no numbers. Does anyone kno...

10 years 前 | 1 个回答 | 0

1

个回答

提问

MATLAB error: Subscript indices must either be real positive integers or logicals
I have the following error in MATLAB, and it's driving me nuts! I have failed to fix it for 24 hours now, and I need your help. ...

10 years 前 | 1 个回答 | 0

1

个回答

提问

New to MATLAB - trying to write bisection method?
Hello, I'm brand new to MATLAB and am trying to understand functions and scripts, and write the bisection method based on an alg...

10 years 前 | 2 个回答 | 0

2

个回答

提问

Can MATLAB divide two row vectors?
Hi. I have a simple question. I inputted [3 3 3]/[4 5 6] in MATLAB and got 0.5844 (format short). My question is how can MATL...

11 years 前 | 2 个回答 | 1

2

个回答