# Wenjie

### Chalmers University of Technology

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Solved

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 ...

bijna 6 jaar ago

Solved

Length of the hypotenuse

Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<http://upload....

bijna 6 jaar ago

Solved

Length of a short side

Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...

bijna 6 jaar ago

Solved

Is this triangle right-angled?

Given any three positive numbers a, b, c, return true if the triangle with sides a, b and c is right-angled. Otherwise, return f...

bijna 6 jaar ago

Solved

Which quadrant?

Given a complex number, output quadrant 'I' 'II' 'III' or 'IV' | II | I | ...

bijna 6 jaar ago

Solved

Pizza!

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

bijna 6 jaar ago

Solved

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...

bijna 6 jaar 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...

bijna 6 jaar 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.

bijna 6 jaar ago

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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...

bijna 6 jaar 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 ...

bijna 6 jaar 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...

bijna 6 jaar ago

Solved

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...

bijna 6 jaar ago

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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. Examp...

bijna 6 jaar 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 ...

bijna 6 jaar 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...

bijna 6 jaar 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:...

bijna 6 jaar ago

How to find zeros of a function?

I've found the solution. First, define the function in a separate file as function y = fun(x) y = x.^2-4; end Then use fzero...

bijna 6 jaar ago | 1

Question

How to find zeros of a function?

For instance, x = -3.55:0.1:3.55; y = x.^2 - 4; Obviously, when x=2 or -2, y=0. But I want to know how to use matlab to fin...

bijna 6 jaar ago | 3 answers | 0

### 3

answersQuestion

use matlab to process a txt file

The situation is this. There is a txt file generated by a scientific software containing lots of information line by line. Some ...

meer dan 9 jaar ago | 1 answer | 0