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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 ...

2 years ago

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Longest run of consecutive numbers

Given a vector a, find the number(s) that is/are repeated consecutively most often. For example, if you have a = [1 2 2 2 1 ...

3 years ago

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Rescale Scores

Each column (except last) of matrix |X| contains students' scores in a course assignment or a test. The last column has a weight...

3 years ago

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Calculate Inner Product

Given two input matrices, |x| and |y|, check if their inner dimensions match. * If they match, create an output variable |z|...

3 years ago

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Find MPG of Lightest Cars

The file |cars.mat| contains a table named |cars| with variables |Model|, |MPG|, |Horsepower|, |Weight|, and |Acceleration| for ...

3 years ago

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Find the Best Hotels

Given three input variables: * |hotels| - a list of hotel names * |ratings| - their ratings in a city * |cutoff| - the rat...

3 years ago

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Crop an Image

A grayscale image is represented as a matrix in MATLAB. Each matrix element represents a pixel in the image. An element value re...

3 years ago

Answered

I have Day, Month, Year, Hour and Minute in different columns, how to combine in a datetime format (17-Oct-2019 00:00)?

try Second = zeros(53715,1); Year = Year+2000; t = datetime(Year,Month,Day,Hour,Minute,Second,'Format','dd-MMM-yyyy hh:mm'); ...

I have Day, Month, Year, Hour and Minute in different columns, how to combine in a datetime format (17-Oct-2019 00:00)?

try Second = zeros(53715,1); Year = Year+2000; t = datetime(Year,Month,Day,Hour,Minute,Second,'Format','dd-MMM-yyyy hh:mm'); ...

3 years ago | 0

Solved

Calculate BMI

Given a matrix |hw| (height and weight) with two columns, calculate BMI using these formulas: * 1 kilogram = 2.2 pounds * 1 ...

3 years ago

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Plot Damped Sinusoid

Given two vectors |t| and |y|, make a plot containing a blue ( |b| ) dashed ( |--| ) line of |y| versus |t|. Mark the minimum...

3 years ago

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Calculate a Damped Sinusoid

The equation of a damped sinusoid can be written as |y = A.ⅇ^(-λt)*cos(2πft)| where |A|, |λ|, and |f| ...

3 years ago

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Solve a System of Linear Equations

*Example*: If a system of linear equations in _x₁_ and _x₂_ is: 2 _x₁_ + _x₂_ = 2 _x₁...

3 years ago

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Verify Law of Large Numbers

If a large number of fair N-sided dice are rolled, the average of the simulated rolls is likely to be close to the mean of 1,2,....

3 years ago

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Find the Oldest Person in a Room

Given two input vectors: * |name| - user last names * |age| - corresponding age of the person Return the name of the ol...

3 years ago

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Convert from Fahrenheit to Celsius

Given an input vector |F| containing temperature values in Fahrenheit, return an output vector |C| that contains the values in C...

3 years ago

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Calculate Amount of Cake Frosting

Given two input variables |r| and |h|, which stand for the radius and height of a cake, calculate the surface area of the cake y...

3 years ago

Answered

detect Circles and squares on the image using regionprops

try this I = imread('test.png'); imshow(I); I = rgb2gray(I); I = im2bw(I,0.01); [L ,num] = bwlabel(I); stats1 = regionprop...

detect Circles and squares on the image using regionprops

try this I = imread('test.png'); imshow(I); I = rgb2gray(I); I = im2bw(I,0.01); [L ,num] = bwlabel(I); stats1 = regionprop...

3 years ago | 0

| accepted

Answered

I am trying to smooth out this graph for an assignment and the code i have entered is exactly what the teacher has showed us, but mine comes up with errors that I don't understand. Can someone help me understand these errors as well as fix my code?

try with x = 1:1:10; y = 1:1:10;

I am trying to smooth out this graph for an assignment and the code i have entered is exactly what the teacher has showed us, but mine comes up with errors that I don't understand. Can someone help me understand these errors as well as fix my code?

try with x = 1:1:10; y = 1:1:10;

3 years ago | 1

Answered

Loop to write data in excel from 1 st iteration to n th iteration

for t = 0:1:10 a = cos(t).*[2 3;4 5] b = cos(t).*[6 5;4 6] c = a+b d = eig(c) r = 2*3*d w(:,t+1) = r end csvwrite(...

Loop to write data in excel from 1 st iteration to n th iteration

for t = 0:1:10 a = cos(t).*[2 3;4 5] b = cos(t).*[6 5;4 6] c = a+b d = eig(c) r = 2*3*d w(:,t+1) = r end csvwrite(...

3 years ago | 0

| accepted

Answered

How can i plot this graph?

clear clc clf x = -0.5:0.001:1.8; f2=mod(x,1); f1=mod(-0.5*cos(2*pi*-x),1); plot(x,f1,'.'); hold on plot(x,f2,'.'); hol...

How can i plot this graph?

clear clc clf x = -0.5:0.001:1.8; f2=mod(x,1); f1=mod(-0.5*cos(2*pi*-x),1); plot(x,f1,'.'); hold on plot(x,f2,'.'); hol...

3 years ago | 1

Answered

How to print data from cell array to a text file ?

try fprintf(fid ,'%d %f \r\n', FINALSHEET{1,1}{row,:},FINALSHEET{1,2}{row,:});

How to print data from cell array to a text file ?

try fprintf(fid ,'%d %f \r\n', FINALSHEET{1,1}{row,:},FINALSHEET{1,2}{row,:});

3 years ago | 0

| accepted

Answered

What is the meaning of any_image(:,w:-1:1) in MATLAB

w:-1:1 start with w step -1 till 1 6:-1:1 -> 6 5 4 3 2 1

What is the meaning of any_image(:,w:-1:1) in MATLAB

w:-1:1 start with w step -1 till 1 6:-1:1 -> 6 5 4 3 2 1

3 years ago | 0

| accepted

Answered

Adding 2 values of old vector into new vector of half size

b = a(1:2:end) + a(2:2:end) (this is not working for uneven amount of inputs)

Adding 2 values of old vector into new vector of half size

b = a(1:2:end) + a(2:2:end) (this is not working for uneven amount of inputs)

3 years ago | 0

| accepted

Solved

Fibonacci Decomposition

Every positive integer has a unique decomposition into nonconsecutive Fibonacci numbers f1+f2+ ... Given a positive integer n, r...

3 years ago

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How many Fibonacci numbers?

Find the number of unique Fibonacci numbers (don't count repeats) in a vector of positive integers. Example: x = [1 2 3 4...

3 years ago

Answered

Could anyone please solve this MATLAB operation x=7/84

7/8\4 = (7/8)\4 = 4/(7/8)

Could anyone please solve this MATLAB operation x=7/84

7/8\4 = (7/8)\4 = 4/(7/8)

3 years ago | 0

Solved

Triangle sequence

A sequence of triangles is constructed in the following way: 1) the first triangle is Pythagoras' 3-4-5 triangle 2) the s...

3 years ago

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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...

3 years ago