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Last seen: 8 months ago | Active since 2022

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a matlab rookie

Programming Languages:
MATLAB
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Professional Interests:
Deep Learning Toolbox, Beamforming and Direction of Arrival Estimation

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The signal generated by the chirp function has amplitude values that are not 1 in some parts of its time-domain diagram
N=800; t2 = 0:1/100e6:(N-1)/100e6; s3 = chirp(t2,0,t2(end),35e6); plot(t2,real(s3)); The signal generated by the chirp fun...

12 months ago | 1 answer | 0

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Question

The commonly used chirp signal in papers is a complex signal. What formula is used to generate the real signal for the chirp() function in Matlab?
In most academic papers, the formula for the linear chirp signal used is shown in the figure below. It is obvious that this is a...

12 months ago | 1 answer | 0

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Question

Why is the result matrix “rho” of function corr (A, B) not a symmetric matrix?
When I was browsing the ‘corr’ function examples provided on the official website, I found that the matrix rho in the result o...

12 months ago | 2 answers | 0

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Question

MATLAB Deep Learning Toolbox cannot fully utilize all the GPU memory.
I am using the MATLAB Deep Learning Toolbox to train my CNN. I have four Tesla K80 GPUs, but when I enable parallel training of ...

1 year ago | 1 answer | 0

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Solved

Find state names that start with the letter N
Given a list of US states, remove all the states that start with the letter N. If s1 = 'Alabama Montana Nebraska Vermont Ne...

1 year 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: Input...

1 year ago

Solved

Find the peak 3n+1 sequence value
A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

1 year ago

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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...

1 year ago

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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...

1 year ago

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

1 year ago

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QWERTY coordinates
Given a lowercase letter or a digit as input, return the row where that letter appears on a standard U.S. QWERTY keyboard and it...

1 year ago

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Find common elements in matrix rows
Given a matrix, find all elements that exist in every row. For example, given A = 1 2 3 5 9 2 5 9 3 2 5 9 ...

1 year ago

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Word Counting and Indexing
You are given a list of strings, each being a list of words divided by spaces. Break the strings into words, then return a maste...

1 year ago

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Given two arrays, find the maximum overlap
Given two (integer) arrays s1 and s2, create a new array s3 which is as short as possible and contains both arrays. #1 s1 = [...

1 year ago

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Kaprekar Steps
6174 is the Kaprekar constant. All natural numbers less than 10,000 (except some with same digits) can be reduced to 6174 in the...

1 year ago

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Calculate the Levenshtein distance between two strings
This problem description is lifted from http://en.wikipedia.org/wiki/Levenshtein_distance. The Levenshtein distance between two...

1 year ago

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It dseon't mettar waht oedrr the lrettes in a wrod are.
An internet meme from 2003 (read more here) asserted that readers are relatively insensitive to letter order in words, so long a...

1 year 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...

1 year ago

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

1 year ago

Question

Unable to generate chirp signal in wireless waveform generator app
It seems that there is no option to generate linear frequency modulation signals (i.e. chirp signals) in the MATLAB wireless wav...

1 year ago | 1 answer | 0

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Question

change matlab linear index to numpy.
I have a three-dimensional matrix X with dimensions 16 x 10 x 1200. The original program used for i = 3876:10000 M...

1 year ago | 1 answer | 0

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Question

Installing cvx (Linux version)on MATLAB online encountered an error
When I want to install the CVX linux version software package on the Matlab online to run my Matlab program.I upload the instal...

1 year ago | 1 answer | 0

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Question

git ssh error: failed to start SSH session: Failed getting banner
I used the source code management function of MATLAB 2022, and when I followed the documentation prompts on the official website...

1 year ago | 1 answer | 0

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Submitted

cobaltyang
my first package

1 year ago | 4 downloads |

Question

Push code error in git :Unable to locate the Git executable
When I try to use git to push code to the github repository in matlab, a window pops up asking me to enter my account and pass...

2 years ago | 1 answer | 0

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Question

How to quickly view the variables in the mat file? My computer is poor, so it is slow to open matlab😭
Because my computer is poor, every time I open matlab, it takes a long time to initialize before I can write code normally. Many...

2 years ago | 2 answers | 0

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Question

What is the function of this button? Where is the corresponding official document link？
I want to know the function of this button, but I can't find the corresponding official document. Does anyone know the correspon...

2 years ago | 1 answer | 0

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answer

Answered
昨天刚装了新版的2022a MATLAB，但是一直显示“警告: 桌面配置文件已损坏或格式不正确。”
楼主，我也出现这种情况了，该怎么解决

2 years ago | 0

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:...

2 years ago

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