**Statistics**

RANK**59**

of 291,859

REPUTATION**3,208**

CONTRIBUTIONS

**28** Questions

**1,243** Answers

ANSWER ACCEPTANCE **
89.29%
**

VOTES RECEIVED**296**

RANK**4,327** of 19,830

REPUTATION**320**

AVERAGE RATING**3.00**

CONTRIBUTIONS**12** Files

DOWNLOADS **45**

ALL TIME DOWNLOADS**3106**

CONTRIBUTIONS**0 Posts**

CONTRIBUTIONS**0** Public Channels

AVERAGE RATING

CONTRIBUTIONS**0** Highlights

AVERAGE NO. OF LIKES

**Feeds**

Solved

Acidity of vinegar and salts

Assuming: pH (potentia hydrogenii) = - log10(H+ ionic concentration in mol/Liter). For a buffer solution containing acetic acid ...

21 days ago

Solved

Volume of this donut

Given hole diameter a, and outermost diameter b, determine the volume y of the resulting donut.

22 days ago

Solved

Size of this cup?

The given vector has diameter of the cup in mm sampled at micrometer increments in depth from top to bottom, need output in cc a...

22 days ago

Solved

Finding perimeter of a rectangle

A rectangle has a length of x centimeters and a width of w centimeters. Find the perimeter.

22 days ago

Solved

area of an annulus

Given the diameter d of the inner circle of the annulus. Given length z of a chord of the outer circle of the annulus. This chor...

22 days ago

Solved

expand intervals vol.2

Similar to problem <http://www.mathworks.co.uk/matlabcentral/cody/problems/2528 2528>. This is a more general case, when bounds ...

22 days ago

Solved

Time Expansion

How can you slow down any discrete-time signal? Example Input original signal x. x = [1 2 3 -1 -2 -5 -4] We want t...

22 days ago

Incorrect dimensions for matrix multiplication

k = @(t,u) (k0 + (p*k0.^u-q*k0).*t +(p*k0.^u-q*k0).*(p*u*k0.^u-q).*t.^2/factorial(2)... +(p*k0.^u-q*k0).*((p*u.*k0.^u-q)....

23 days ago | 0

| accepted

how to get variable of function in for loop

x = 1:20; y = 1:13; f = []; for i = 1:length(x), for j = 1:length(y); f(i,j) = x(i).^2 - x(i) -2*y(j).^2 + y(j) -2...

25 days ago | 0

Solved

Convert Kilometers to Miles

Convert kilometers to miles. Consider 1 km = 0.62 mile. Note: Don't use the '*' operator.

26 days ago

Solved

Create an anti-identity matrix

Create an anti-identity matrix of given dimension. Examples n = 2 A = [0 1; 1 0] n = 3 A = [0 0 1; 0 1 0; 1 0 0...

26 days ago

Solved

Sort the vector with the given index

Given x = [1 2 4 8 17] and t = [1 3 2 5 4] then y = [1 4 2 17 8].

26 days ago

Solved

middleAsColumn: Return all but first and last element as a column vector

Given input A, return all but the first and last elements, arranged as a column vector. (I.e., all dimensions after the first s...

26 days ago

Solved

What number has this problem?

This problem is added because it is problem number *???* in the "Community" problems section. <http://www.mathworks.de/matlab...

26 days ago

Solved

Back to basics 9 - Indexed References

Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix and row and column, output the index of th...

26 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...

26 days ago

Solved

Generate a NaN...on purpose

The goal is to create a function that will return a single "NaN" without using the nan function. I am interested to see how many...

26 days ago

Solved

Convert yards to feet

The goal of this script is to convert a value given in yards to feet.

26 days ago

Solved

Find the sum of n squares

What is the sum of the squares of the first n integers?

26 days ago

Solved

Remove the positive integers.

Given array x (of integers), remove all the positive numbers and display ouput as y. Example x=[1 -2 3 -4] , output is y=[-2 -...

26 days ago

Solved

Getting the absolute index from a matrix

This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to get the <http://www.ma...

26 days ago

Solved

If-then-else

Complete the function below such that if the value of x is in the range 10 to 14, inclusive, the value 18 is assigned to y. Oth...

26 days ago

Solved

Back to basics 26 - Keywords

Covering some basic topics I haven't seen elsewhere on Cody. Return a cell array of strings of all MATLAB keywords.

26 days ago

Solved

surface of a spherical planet

you just discovered its circumference, that is the input.

26 days ago

Solved

Colon operator of two vectors

You are given two vectors of equal length: VecStart, VecEnd Each vector contain a set of integers, where VecEnd(j)>=VecStar...

26 days ago

Solved

Find Out sum of principal diagonal element of given matrix

Find out sum of principal diagonal element of given matrix If A=[1 0 0; 0 1 0;0 0 1], then answer must be 3.

26 days ago

Solved

Mode

Find the mode of the vector Assumption: no vector is bimodal Example 1: input=[1 2 3 4 4]; output=4 Example 2: input=[7...

26 days ago

Solved

Back to basics 19 - character types

Covering some basic topics I haven't seen elsewhere on Cody. Return the number of punctuation characters in the input variabl...

26 days ago

Solved

Weighted average

Given two lists of numbers, determine the weighted average as follows Example [1 2 3] and [10 15 20] should result in 33.3...

26 days ago