Rusty

Indian Institute of Technology, Kanpur

Active since 2015

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I am trying to get an infinite sum using symsum, but when I trying to convert to double I am getting error
%if true %%%% clear all E=0.01; % t= [0.025 0.05 0.1 0.2 0.3 0.4 1]'; t=[ 0.05]; y=0:0.1:1; y=y'; syms n p=(1/(4*pi*p...

mer än 9 år ago | 0 answers | 0

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Question

I am trying to solve a system of 3 PDEs using pdepe in MATLAB. But I am getting an error
Here is the code % function pdex51 m = 0; x = 0:0.005:1; t = 0:0.01:1; options=odeset('Reltol',1e-10,'Abstol',1...

mer än 9 år ago | 1 answer | 0

1

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Question

Fluctuating and negative value in pdepe
I am trying to solve a coupled pde in MATLAB. The code is : function pdex5 m = 0; x = linspace(0,1,100); t = lins...

mer än 9 år ago | 0 answers | 0

0

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Question

I am solving a pde using pdepe in matlab. But I am getting warnings and some peculiar results.
<</matlabcentral/answers/uploaded_files/44504/IMG_20160202_091532.jpg>> Here is my differential equation. A and B are constan...

mer än 9 år ago | 0 answers | 0

0

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Question

MATLAB Image processing filtering
One sample image is http://goo.gl/0IOkBZy .Download the file and name it as <</matlabcentral/answers/uploadd_files/43433...

nästan 10 år ago | 3 answers | 0

3

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Answered
Write a function so that, when given a natural number N, the function returns the value max n ∈ N : 12 + 22 + · · · + n 2 ≤ N
function [ p ] = rusty( N) a(1)=12; i=1; while sum(a(:))<=N a(i+1)=a(i)+10; i=i+1; end if sum...

nästan 10 år ago | 0

Question

I have a symbolic function, I want to know the points of discontinuity.
For example the function is : syms t k=t*heaviside(5-t)+5*heaviside(t-5) ;

nästan 10 år ago | 1 answer | 0

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answer

Solved

Calculate the derivative of a polynomial
Example: in = [ 1 1 1 ] out = [ 2 1 ]

ungefär 10 år 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...

ungefär 10 år ago

Solved

Cell joiner
You are given a cell array of strings and a string delimiter. You need to produce one string which is composed of each string fr...

mer än 10 år ago

Solved

Array of Ones
Create a 100 X 100 array of ones.

mer än 10 år ago

Solved

Factorize THIS, buddy
List the prime factors for the input number, in decreasing order. List each factor only once, even if the factorization includes...

mer än 10 år ago

Solved

What percentage?
Calculate the output c as the percentage of a on b for given a and b.

mer än 10 år ago

Solved

Lightning strike distance: Writing a function
Write a function named LightningDistance that outputs "distance" given input "seconds". Seconds is the time from seeing lightnin...

mer än 10 år ago

Solved

"Find out the best cricket"
This is how I originally read Problem 2013, so let's just go with it. Give me the first and last name of the best cricket, rega...

mer än 10 år ago

Solved

prime test
find largest 2 digit prime number

mer än 10 år ago

Answered
How to find object is vertically or horizontally symmetry ?
let the matrix be A if A== fliplr(A) %this means that it has vertical symmetry disp(' it is vertically symmetrical ')...

mer än 10 år ago | 0

| accepted

Solved

Find the alphabetic word product
If the input string s is a word like 'hello', then the output word product p is a number based on the correspondence a=1, b=2, ....

mer än 10 år ago

Solved

Pangrams!
A pangram, or holoalphabetic sentence, is a sentence using every letter of the alphabet at least once. Example: Input s ...

mer än 10 år ago

Solved

Is my wife right? Now with even more wrong husband
Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...

mer än 10 år ago

Solved

Remove all the consonants
Remove all the consonants in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill'; Output s2 is 'a ...

mer än 10 år ago

Solved

Volume of a box
Given a box with a length a, width b, and height c. Solve the volume of the box.

mer än 10 år ago

Solved

Binary numbers
Given a positive, scalar integer n, create a (2^n)-by-n double-precision matrix containing the binary numbers from 0 through 2^n...

mer än 10 år ago

Solved

Pizza value using expression with parentheses
Pizza prices are typically listed by diameter, rather than the more relevant feature of area. Compute a pizza's value (cost per ...

mer än 10 år ago

Solved

Roll the Dice!
*Description* Return two random integers between 1 and 6, inclusive, to simulate rolling 2 dice. *Example* [x1,x2] =...

mer än 10 år ago

Solved

Too mean-spirited
Find the mean of each consecutive pair of numbers in the input row vector. For example, x=[1 2 3] ----> y = [1.5 2.5] x=[1...

mer än 10 år ago

Solved

Nearest Numbers
Given a row vector of numbers, find the indices of the two nearest numbers. Examples: [index1 index2] = nearestNumbers([2 5 3...

mer än 10 år ago

Solved

Pascal's Triangle
Given an integer n >= 0, generate the length n+1 row vector representing the n-th row of <http://en.wikipedia.org/wiki/Pascals_t...

mer än 10 år ago

Solved

Target sorting
Sort the given list of numbers |a| according to how far away each element is from the target value |t|. The result should return...

mer än 10 år ago

Solved

Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

mer än 10 år ago