Muhammad Usman
School of Mathematics & Statistics
PhD (Scholar) Mathematics
Statistics
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MATLAB中央寻宝决定性的徽章
Awarded to Muhammad Usman on 25 Sep 2021
Accept 20 answers given by other contributors
Awarded to Muhammad Usman on 11 May 2021
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Awarded to Muhammad Usman on 08 May 2020
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Awarded to Muhammad Usman on 28 Apr 2020
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Awarded to Muhammad Usman on 14 Nov 2019
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Awarded to Muhammad Usman on 09 Oct 2019
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Awarded to Muhammad Usman on 06 Oct 2019
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Awarded to Muhammad Usman on 11 May 2014
Content Feed
Question
How to do manual operation of cross multiplication or substitution?
如果信谊B x y = x * x ^ 2 + B *;dy = diff (y) d2y =diff(dy) then how to get where d2y is the second derivation; using subs o...
4 days ago | 1 answer | 0
1
answerSolved
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.
5 days ago
Question
Optimize legend command?
Hi, I am struggling with LaTeX in legend, so far I wrote legend like: legendStrings = string(n); l = legend(legendStrings); s...
8 days ago | 1 answer | 0
1
answerQuestion
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...
1month ago | 1 answer | 0
1
answerSolved
Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...
3 months ago
Question
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 ...
7 months ago | 0 answers | 0
0
answersQuestion
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...
7 months ago | 1 answer | 0
1
answerQuestion
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. ...
7 months ago | 1 answer | 0
1
answerQuestion
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)...
8 months ago | 0 answers | 0
0
answersQuestion
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...
10 months ago | 1 answer | 0
1
answerQuestion
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 ...
10 months ago | 1 answer | 0
1
answerQuestion
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...
10 months ago | 1 answer | 0
1
answerQuestion
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] ; ...
11months ago | 1 answer | 0
1
answerSolved
Determine the square root
Determine the square root of the value the user has entered, n.
1year ago
Solved
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 ...
1year ago
Solved
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 ...
1year ago
Solved
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. <
1year ago
Solved
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:...
1year ago
Problem
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...
1year ago | 0| 8 solvers
Solved
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
1year ago
Solved
Mysterious digits operation (easy)
What is this digit operation? 0 -> 0 1 -> 9 121 -> 9 44 -> 6 15 -> 5 1243 -> 7 ...
1year ago
Solved
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...
1year ago
Solved
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]; ...
1year ago
Solved
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...
1year ago
Solved
Convert a vector into numbers
Suppose a vector x = [ 1 2 4 7] is given. You have to convert this vector into string number y = '1247'. Examples x = [ 1...
1year ago
Solved
Integer or Float?
Test an input to see whether it is an integer or a floating point number. If it is an integer return 1 for 'true'. Otherwise ret...
1year ago
Solved
Sum of the Matrix Elements
Add up all the elements in a NxM matrix where N signifies the number of the rows and M signifies the number of the columns. E...
1year ago
Solved
Are you in XY plane?
Take a point P as an input position Vector (x,y,z). If you are in XY plane, return 1 as an output otherwise return 0. Example...
1year ago
