Question

How to make 3d graph from a 2d graph based on the 360 degree

Hi all, I want to convert a simple x&y-axis 2D plot rotating *around 360 degree around the 3rd dimension, let say z-axis, and fo...

oltre 3 anni ago | 1 answer | 0

Question

How to run the iteration (total= 2^22) faster?

Hi everyone, I will make number of simulations next week, and I would like to know if I can make the for loop faster. I already...

oltre 5 anni ago | 1 answer | 0

Question

how to decode Space-time trellis code in two tap frequency selective channel

Hi everyone, I am working on Space-Time trellis codes over frequency selective channel. Currently, my decoder section for STTC ...

oltre 5 anni ago | 0 answers | 0

Question

monochromatic image with 256 gray levels

Hello everyone, Assuming a monochrome image with 1024 × 1024 pixels and 256 gray levels, I would like to calculate the total f...

oltre 5 anni ago | 2 answers | 0

Question

Low pass filter design first peak elimination

Hello Everyone, I try to make a low pass operation on my data set which has 1kHz sampling rate. When I try to make fft power sp...

oltre 5 anni ago | 1 answer | 0

Question

How to read text file in object oriented programming ?

Hello, I would like to know how can I read a text or an excel file in the object oriented programming ? I have a simple code l...

oltre 5 anni ago | 1 answer | 1

Question

How to intersect two plot area

Hello, I will put simply a picture which shows my actual goal. <</matlabcentral/answers/uploaded_files/15790/wfef.JPG>> ...

oltre 5 anni ago | 0 answers | 0

Solved

Remove the vowels

Remove all the vowels in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill' Output s2 is 'Jck nd Jll wn...

oltre 5 anni ago

Solved

Circle area using pi

Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.

oltre 5 anni ago

Solved

Remove any row in which a NaN appears

Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

oltre 5 anni 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...

oltre 5 anni ago

Solved

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]

oltre 5 anni ago

Question

Using three 60000 x 1 double matrices, how to make the 3D graph efficiently in the form of 2D

Hello, Simply, I need to make use 3 matrices which are 60000 x 1 size each. When I use the code below, I have a serious perfor...

oltre 5 anni ago | 1 answer | 0

Solved

Simple equation: Annual salary

Given an hourly wage, compute an annual salary by multiplying the wage times 40 and times 50, because salary = wage x 40 hours/w...

circa 6 anni 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...

circa 6 anni 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...

circa 6 anni ago

Solved

Finding Perfect Squares

Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

circa 6 anni 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...

circa 6 anni ago

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 ...

circa 6 anni 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 ...

circa 6 anni 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...

circa 6 anni ago

Solved

Determine if input is odd

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

circa 6 anni ago

Solved

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...

circa 6 anni ago

Solved

Weighted average

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

circa 6 anni ago

Solved

Sum all integers from 1 to 2^n

Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

circa 6 anni 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 ...

circa 6 anni 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...

circa 6 anni ago