Muhammad Usman

Last seen: 9 days 前 | 自 2011 起处于活动状态

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PhD (Scholar) Mathematics

统计学

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How to solve 2nd order BVP using Chebyshev Spectral Method?
Hi, I am tring to solve the following BVP using Chebshev Spectral Method: with boundary conditions: I am following the cod...

1 year 前 | 1 个回答 | 0

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How to find the order of the power of A matrix?
Hi, I want to calculate the order of the power matrix A. Here order doesn't mean for rows into columns but the power n of the ma...

1 year 前 | 2 个回答 | 0

2

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How can I solve this?
% Solve the system of equations starting at the point [0,0,0]. % PL = x(1); c = x(2); k = x(3); % Initial guess is [0,0,0], yo...

2 years 前 | 0

提问

Problem in implementing Echelon Form and Solve System of Linear Equations
Here is my code: A = [3 2 1;-4 5 7;1 0 -9]; b = [1;4;5]; % Solving System of Linear Equations by using built-in command for i...

2 years 前 | 1 个回答 | 0

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Convert given decimal number to binary number.
Convert given decimal number to binary number. Example x=10, then answer must be 1010.

2 years 前

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Get all prime factors
List the prime factors for the input number, in decreasing order. List each factor. If the prime factor occurs twice, list it as...

2 years 前

提问

How to do manual operation of cross multiplication or substitution?
If syms A B x y = A*x^2 + B*x; dy = diff(y) d2y = diff(dy) then how to get where d2y is the second derivation; using subs o...

3 years 前 | 1 个回答 | 0

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Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

3 years 前

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Optimize legend command?
Hi, I am struggling with LaTeX in legend, so far I wrote legend like: legendStrings = string(n); l = legend(legendStrings); s...

3 years 前 | 1 个回答 | 0

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What's the problem with this simple anonymous function?
Here's an simple code: clear all; clc; close all; n = 1:3; for i = 1:numel(n) %numel is used if someother time I'll use negat...

3 years 前 | 1 个回答 | 0

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Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

3 years 前

提问

How to adjust initial condition to nondimensionalization of coupled ODE?
Here is the code for dimenional and non-dimensional form of coupled ODEs using ode45, but both results are not agreeing. Please ...

3 years 前 | 0 个回答 | 0

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ODE solution using Fourier series
Hello, I am trying to solve first order ode () using Fourier Series. I wrote the code, but I was doing something, please idetif...

3 years 前 | 1 个回答 | 0

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Calling Euler Method to solve Shooting Method
Hi, I am trying to solve a BVP: y''(x) +5y'(x)+4y(x) = 1 with boundary conditions y(0) = 0 and y(1)=1 using shooting method. ...

3 years 前 | 1 个回答 | 0

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How to correct the regenerated plot of given analytical solution of ODE?
for for The analytical solution for this ODE is given belown and written as MATLAB in code routine: for t = -log(1-a)...

3 years 前 | 0 个回答 | 0

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Addition of numbers in array as string
I am following these lines of code, but generating error when I do: x = randi([0,9],1,20); y = randi([0,9],1,20); x_new = st...

4 years 前 | 1 个回答 | 0

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Addition of numbers in array
Lets' say I have 2 vectors: x = [7 4 6]; y = [1 4 4]; But these are not just vector consider them as A number, i.e., 746 and ...

4 years 前 | 1 个回答 | 0

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Plot with smaller variation in input argument under user defined function?
I am stuck with a smaller concept that How to Plot with smaller variation in input argument under user defined function? For ex...

4 years 前 | 1 个回答 | 0

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How to save last three values from for loop?
I just got stuck to save the last three values of r from the for loop, please help me in this regard. yl = 1; rl = [0, yl] ; ...

4 years 前 | 1 个回答 | 0

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Determine the square root
Determine the square root of the value the user has entered, n.

4 years 前

已解决

Sum of the Multiplication of Vectors
Given the vectors x and y as input, multiply the vectors and return the summation of its elements. Example: x = [1 2 ...

4 years 前

已解决

Given area find sides
In a right angle triangle given area 'A' one arm=x, another arm=2x then find the value of x. For example, area A=400 then ...

4 years 前

已解决

Area of an Isoceles Triangle
An isosceles triangle has equal sides of length x and a base of length y. Find the area, A, of the triangle. <<http://upload...

4 years 前

已解决

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

4 years 前

问题

Find the remainder with the factorial of PRIMES?
* Take a number greater than or equal to 2 and take its primes. e.g. 6 and its primes are 2 3 5 * calculate the factorial of i...

4 years 前 | 0 | 10 个解题者

已解决

Project Euler: Problem 10, Sum of Primes
The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17. Find the sum of all the primes below the input, N. Thank you <http:/...

4 years 前

已解决

Mysterious digits operation (easy)
What is this digit operation? 0 -> 0 1 -> 9 121 -> 9 44 -> 6 15 -> 5 1243 -> 7 ...

4 years 前

已解决

Find nearest prime number less than input number
Find nearest prime number less than input number. For example: if the input number is 125, then the nearest prime number whi...

4 years 前

已解决

Replace Vector Elements
Replace all elements in a vector which are equal to or smaller than zero with 0.1. Example: A = [1 2 3 -1 0 2 -3 -80]; ...

4 years 前

已解决

Reverse the elements of an array
Reverse the order of elements in an array: eg: input X = [ 1 2 3 ; 4 5 6 ; 7 8 9 ] o...

4 years 前

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