353 total contributions since 2019

research interests: vibrations, optimal control, system modeling and simulation, mechatronics... coding

Solved

Number of Even Elements in Fibonacci Sequence

Find how many even Fibonacci numbers are available in the first d numbers. Consider the following first 14 numbers 1 1 2...

12 days ago

Solved

Integer Sequence - II : New Fibonacci

Crack the following Integer Sequence. (Hints : It has been obtained from original Fibonacci Sequence and all the terms are also ...

12 days ago

Solved

Return fibonacci sequence do not use loop and condition

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

12 days ago

Solved

Is X a Fibonacci Matrix?

In honor of Cleve's new blog and post: <http://blogs.mathworks.com/cleve/2012/06/03/fibonacci-matrices/> Is X a Fibonacci ...

12 days ago

Solved

Return the Fibonacci Sequence

Write a code which returns the Fibonacci Sequence such that the largest value in the sequence is less than the input integer N. ...

12 days ago

Solved

N-Dimensional Array Slice

Given an N-dimensional array, _A_, an index, _I_, and a dimension, _d_, return the _I_ th elements of _A_ in the _d_ dimension. ...

12 days ago

Solved

Permute diagonal and antidiagonal

Permute diagonal and antidiagonal For example [1 2 3;4 5 6;7 8 9] -> [3 2 1;4 5 6;9 8 7] WITHOUT diag function (and variable n...

12 days ago

Solved

Removing rows from a matrix is easy - but what about inserting rows?

Assume A is a 5-by-5 matrix. A([2,4],:) = [] is a quick way to remove rows 2 and 4. Can you find a quick way to insert rows into...

12 days ago

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...

12 days ago

Solved

Find the next Fibonacci number

In the sequence of Fibonacci numbers, every number is the sum of the two preceding ones: 1, 1, 2, 3, 5, 8, 13, 21, 34, 55...

13 days ago

Solved

Summing digits

Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...

13 days ago

Solved

Most nonzero elements in row

Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...

13 days ago

Solved

Back and Forth Rows

Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...

13 days 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...

13 days ago

Solved

Read a column of numbers and interpolate missing data

Given an input cell array of strings s, pick out the second column and turn it into a row vector of data. Missing data will be i...

13 days ago

Solved

Project Euler: Problem 2, Sum of even Fibonacci

Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 te...

13 days ago

Solved

Find the longest sequence of 1's in a binary sequence.

Given a string such as s = '011110010000000100010111' find the length of the longest string of consecutive 1's. In this examp...

13 days ago

Solved

Find the numeric mean of the prime numbers in a matrix.

There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

13 days ago

Answered

Add date stamp to time stamp

Hi, these commands will resolve your task: load BB EEE=datenum(HRV_BB3.Time); DATES = datestr(EEE, 'mm/dd/yy'); You'd n...

Add date stamp to time stamp

Hi, these commands will resolve your task: load BB EEE=datenum(HRV_BB3.Time); DATES = datestr(EEE, 'mm/dd/yy'); You'd n...

14 days ago | 0

Answered

Function of vector with letter grade

Hi, function GRADE = fun_degree(inp) if inp >=90 GRADE='A'; fprintf('Your score is %d and Your earned grade is A \n', i...

Function of vector with letter grade

Hi, function GRADE = fun_degree(inp) if inp >=90 GRADE='A'; fprintf('Your score is %d and Your earned grade is A \n', i...

15 days ago | 1

Answered

How do you graph two equations on the same graph?

Hi, x = 0:.1:10; I = (-1/5000)*x+(.0018); plot(x,I), hold on %plot 2 q=1.6022e-19; C=28.73 ; T=273+C; ...

How do you graph two equations on the same graph?

Hi, x = 0:.1:10; I = (-1/5000)*x+(.0018); plot(x,I), hold on %plot 2 q=1.6022e-19; C=28.73 ; T=273+C; ...

15 days ago | 0

Answered

Problem with using while

while .. end is not used correcly, use for ... end instead for i = 1:numImages % Read Image I = readimage(imds,...

Problem with using while

while .. end is not used correcly, use for ... end instead for i = 1:numImages % Read Image I = readimage(imds,...

15 days ago | 0

Answered

Fixing figure size to match fontsize

hi, Maybe this one can help you to solve your task: set(gcf, 'paperpositionmode', 'auto'); print(gcf, '-djpeg', '-r600', 'M...

Fixing figure size to match fontsize

hi, Maybe this one can help you to solve your task: set(gcf, 'paperpositionmode', 'auto'); print(gcf, '-djpeg', '-r600', 'M...

15 days ago | 0

Answered

Change MATLAB character set encoding

Hi, Maybe this one helps with your problem: feature('DefaultCharacterSet','UTF-8'); Good luck

Change MATLAB character set encoding

Hi, Maybe this one helps with your problem: feature('DefaultCharacterSet','UTF-8'); Good luck

16 days ago | 0

Answered

plot a smith chart

Hi, Here is a useful help: https://www.mathworks.com/discovery/s-parameter.html Good luck.

plot a smith chart

Hi, Here is a useful help: https://www.mathworks.com/discovery/s-parameter.html Good luck.

16 days ago | 0

Answered

how to solve a linear equation

Hi, Here is the solution: syms P0 P1 P2 P3 % stable state syms u03 lamda13 lamda20 lamda21 u32 T= [1-...

how to solve a linear equation

Hi, Here is the solution: syms P0 P1 P2 P3 % stable state syms u03 lamda13 lamda20 lamda21 u32 T= [1-...

16 days ago | 0

| accepted

Answered

How to make a parabolic interpolation?

Hi, An exact custom equation as asked in the question can be attained on step 5 Fit Model Type selection via Custom Equation ...

How to make a parabolic interpolation?

Hi, An exact custom equation as asked in the question can be attained on step 5 Fit Model Type selection via Custom Equation ...

16 days ago | 0

Answered

Loop for comparing and plotting data

Hi Here is the corrected solution: load DayGroups.mat load DayGroups_t.mat for k = 1:size(DayGroups,1) for j = 1:s...

Loop for comparing and plotting data

Hi Here is the corrected solution: load DayGroups.mat load DayGroups_t.mat for k = 1:size(DayGroups,1) for j = 1:s...

16 days ago | 0

| accepted

Answered

How to make a parabolic interpolation?

Hi, An easy solution is to employ the toolbox: cftool of MATLAB. Launch it: >> cftool Select X data: X Select Y data: Y S...

How to make a parabolic interpolation?

Hi, An easy solution is to employ the toolbox: cftool of MATLAB. Launch it: >> cftool Select X data: X Select Y data: Y S...

16 days ago | 0

Answered

Matlab Vehicle / Car Tracking / Kalman Filter / Noise Reducing

Hi, In your problem, you may employ the moving average filter: movavg() to reduce the influence of the noises. Good luck.

Matlab Vehicle / Car Tracking / Kalman Filter / Noise Reducing

Hi, In your problem, you may employ the moving average filter: movavg() to reduce the influence of the noises. Good luck.

16 days ago | 0