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Multiply binary numbers

Write a function to multiply two binary numbers input as strings. For example, input values of ‘1011’ and ‘101’ should give ’110...

2 days ago

Solved

Combination logic

Create an algorithm in MATLAB that calculate the combination for the given positive integers n and k as inputs. When k > n, the ...

4 days ago

Solved

Easy Sequences 10: Sum of Cumsums of Fibonacci Sequence

The function F(n) is defined as the set of Fibonacci numbers from the first up to the n-th. S(n) is the result of applying to F,...

4 days ago

Solved

Count the primes in Collatz sequences

Several Cody problems (21, 69, 42937, 44448, 44784, 52422) involve Collatz sequences. These start with a seed . If is odd, the ...

5 days ago

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The perimeter of a circle

Calculate the perimeter of a circle E.g If input r(radius) = 2 , the output( the perimeter of a circle) = 12.5664.

5 days ago

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Easy Sequences 17: Mu Variant Function

The mobius function is an important arithmetic function. It is often represented by the Greek letter mu (μ), and is sometimes ca...

5 days ago

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Easy Sequences 16: Volume of Embedded Octahedron

An octahedron (not regular) is formed by joining the centers of the faces of a rectangular parallelepiped (see below figure). ...

6 days ago

Answered

Random number selection from matrix column and from decimal number

[A(randi(3,1,4)+[0 3 6 9]),rand(1,2)];

Random number selection from matrix column and from decimal number

[A(randi(3,1,4)+[0 3 6 9]),rand(1,2)];

7 days ago | 0

Answered

How to store array?

x=0:.1:3; for k=1:length(x) A=[5*x(k),0;2*x(k)^2,1] B=[0;2.55] Y(:,k)=A\B; end

How to store array?

x=0:.1:3; for k=1:length(x) A=[5*x(k),0;2*x(k)^2,1] B=[0;2.55] Y(:,k)=A\B; end

7 days ago | 1

Solved

Easy Sequences 15: Pythagorean Area with maximum Hypotenuse

A pythagorean triangle is defined as a right triangle with all three sides having integer lengths. Examples of pythogorean trian...

9 days ago

Answered

Create table of means from multiple tables

temp=T1.Properties.VariableNames; T=array2table((T1{:,:}+T2{:,:}+T3{:,:})/3); T.Properties.VariableNames=temp;

Create table of means from multiple tables

temp=T1.Properties.VariableNames; T=array2table((T1{:,:}+T2{:,:}+T3{:,:})/3); T.Properties.VariableNames=temp;

10 days ago | 0

Solved

List the Moran numbers

The quotient of a Moran number and its digit sum is prime. For example, 117 and 481 are Moran numbers because 117/(1+1+7) is 13 ...

10 days ago

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Easy Sequences 14: Consecutive Composites

Generating a given number of consecutive numbers all of which are composites is easy. For example the following is a sequence of...

11 days ago

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Easy Sequences 13: Average Speed of Spaceship

A certain alien spaceship is capable of traveling at extremely high velocities and is able to change speed instantaneously. The ...

11 days ago

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List modest numbers up to n

After determining the nude numbers, or the numbers that openly display some of their divisors as their digits, one would think t...

11 days ago

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Determine whether a number is unprimeable

The number 204 is unprimeable because no single digit can be changed to make it prime. In contrast, the number 207 is not unprim...

11 days ago

Solved

Determine whether a number is a fibodiv number

The number 14 is a fibodiv number because you can divide it into 1 and 4, use those numbers as the seeds for a Fibonacci sequenc...

11 days ago

Solved

Easy Sequences 12: 50th Prime

Write a function that outputs the 50th prime after a given number. For example, the 50th prime after 500 is 829. NOTE: If 'n' i...

22 days ago

Solved

Easy Sequences 7: Easy as Composite Pi

The prime Pi function is defined as the number of prime numbers from 1 to a certain given limit. In MATLAB, it is easy to create...

30 days ago

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Printing out zeros as empty character for a tex file

s=sprintf([num2str(i) ' & ' num2str(myData(i,1), format)... ' & ' num2str(myData(i,2), format) ... ' & ' nu...

Printing out zeros as empty character for a tex file

s=sprintf([num2str(i) ' & ' num2str(myData(i,1), format)... ' & ' num2str(myData(i,2), format) ... ' & ' nu...

1 month ago | 0

| accepted

Solved

Shuffle

Shuffle a vector by breaking it up to segments of |n| elements, and rearranging them in a reversed order. For example, the ve...

1 month ago

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Change error bar colour and data point colour in a loop

errorbar(x(i),y(i),err(i),'o', 'LineWidth', 2, 'MarkerFaceColor','g','Color','g');

Change error bar colour and data point colour in a loop

errorbar(x(i),y(i),err(i),'o', 'LineWidth', 2, 'MarkerFaceColor','g','Color','g');

1 month ago | 1

| accepted

Answered

How do I randomly extract 20 segments of data from a signal?

You could just keep matrix form with a 3rd dimension for k=1:20 newMatrix(:,:,k)=yourMatrix(randperm(60001,1000),:); end

How do I randomly extract 20 segments of data from a signal?

You could just keep matrix form with a 3rd dimension for k=1:20 newMatrix(:,:,k)=yourMatrix(randperm(60001,1000),:); end

1 month ago | 0

Solved

Cos Function

x is the abscissa. find the absolute value of cosine of -x and the same value with changed sign.

1 month ago

Answered

Plotting the function of single variable

n0 = 400; r0 = 1/n0; gamma = 1.26; p=20;%assumed s=.7;%assumed P=1:(p+1); r=r0*gamma.^(0:p); N=@(t)r0*n0*(2*s/(2*s-1))^(p...

Plotting the function of single variable

n0 = 400; r0 = 1/n0; gamma = 1.26; p=20;%assumed s=.7;%assumed P=1:(p+1); r=r0*gamma.^(0:p); N=@(t)r0*n0*(2*s/(2*s-1))^(p...

1 month ago | 0

Solved

Retirement savings

At the start of what year will you have reached or exceeded a savings goal? Parameters (all are constant scalars given in a s...

1 month ago

Solved

Easy Sequences 2: Trigonometric function with integral input and output

The function 'F', defined as: , will always return an integer if the input is a natural number (in radian...

1 month ago

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pick up 2 number!

create number A with 5 digits,number 1 is appear 2 times,other is 1 times. How many way to pick up n number randomly from 1 to ...

1 month ago