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Summing digits
Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...

4 years 前

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Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

4 years 前

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Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

4 years 前

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Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

4 years 前

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Add two numbers
Given a and b, return the sum a+b in c.

4 years 前

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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...

4 years 前

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Trouble using fsolve with two non-linear equations and 3 parameter
I think it will works like in this way: function F = eql_coef(x) % x(1) == a % x(2) == d K_H2O = 20.999; K_OH = 1.0478; p ...

4 years 前 | 0

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Is this a bug in bar plot
I suggest you to use two additional lines of code highValue=10E15; y = [2 2 3*highValue; 2 5 6*highValue; 2 8 9*highValue; 2 1...

4 years 前 | 0

提问

merge mat files with different size?
Hi, Consider I have different .mat files and I want to merge them all and remove the repeated values, but the first problem I a...

4 years 前 | 1 个回答 | 0

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need help to plot a mesh
I just want to mesh plot a dirac delta function, can somebody help me to do so. I wrote some lines of code to plot dirac delta ...

4 years 前 | 1 个回答 | 0

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What is the error in this computation?
Here I want to plot a simple sum. I computed it manually by iterating different values, and then did it same by using for loop,...

4 years 前 | 1 个回答 | 0

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Error in computing numerical solution?
I am enable to compute numerical solution, as it generates weird Initial conditions (may be) compared to the inintial value of U...

4 years 前 | 0 个回答 | 0

0

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Spectral Method without FFT in MATLAB
Can somebody guide me that how spectral method will be implemented in MATLAB to PDE (lets say homogeneous heat equation with per...

5 years 前 | 0 个回答 | 0

0

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Specrtal Method for Heat Equation
I have one dimensional homogeneous heat eqaution. I want to solve it numerically using by supposing where Taking time deri...

5 years 前 | 0 个回答 | 0

0

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已回答
How do i use boundary conditions to find variables in an equation
if you let Lp=constant and make changes in soln = solve(u,eqns,vars); to soln = solve(eqns); you will get a structure soln ...

5 years 前 | 0

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setting column of a matrix to zero
You haven't define constants a and z, and a vector mt, so I suppose a=-1, z=4 and mt=rand(1,50) and following lines of code to p...

5 years 前 | 0

提问

How to plot analytical solution in terms of Fourier Series
I want to plot the analytical solution of the equation given below: for x=-1:1 and t=0:0.4:2 for as suitable values of p. I...

5 years 前 | 1 个回答 | 0

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How can i plot an inline function?
I wrote a code in which i got and inline function as U = Inline function: U(p,t,x) = (372863112183097.*exp(500....

5 years 前 | 2 个回答 | 0

2

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Adjust subscript style / height
use the following after the plot command xlabel("y_{" + n + "}", 'Interpreter', 'tex') %for alphabet and xlabel(" \Omega_{"...

5 years 前 | 0

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I am facing problem with big fraction
Hello everyone, When i am writing the following code, "sumx" returns me value in fraction, i want to show my result in terms of...

5 years 前 | 0 个回答 | 0

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When L is not unique, how can I choose any of L
let say i have a vector S=[ 7 1 15 13 2 14 6 10 12 11 4 8 3 9 5]; and after ...

6 years 前 | 1 个回答 | 0

1

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find the longest monotonically increasing subsequence of a sequence of n numbers?
I have algorithm of the longest monotonically increasing subsequence of a sequence of n numbers Let S[1]S[2]S[3]...S[n] be the ...

6 years 前 | 3 个回答 | 0

3

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I want to save matrix at each iteration to later use for Multiplication
I have written a code, it is working fne, but i couldnot save the result at each step. clear all; clc a=0:1; b=0:1; c=0...

6 years 前 | 1 个回答 | 0

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how to call a function one m-file to another m-file
lets say i have one m-file named call1.m having: function t =call1(a,b) a=10; b=5; t=a+b; end and i want to ca...

9 years 前 | 1 个回答 | 0

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I want to have my error bar graph like given in picture
clear all; clc; C = [0.962 0.9416 0.9606 0.9845 0.9385]; N = [0.9392 0.979 0.948 0 0]; S = [0.9599 0.9276 0.9571 0.93...

9 years 前 | 0 个回答 | 0

0

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for loop for different set of values
Hi, i want to run for loop with different set of values as for example for i = 2:6,17:22 Y= 2*i; End Please do it ...

9 years 前 | 3 个回答 | 0

3

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problem in solving coupled non-linear Initial Value ODE using finite difference method
Hi i wrote a code for 3 coupled non-linear Initial Value ODE ( u and w are second order and v is 1st order ODE) using finite dif...

9 years 前 | 0 个回答 | 0

0

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Error in Exact solution and numerical Solution
Hi I am solving a 2nd order linear ODE using Forward Scheme Finite Difference Method and also computing the Exact solution and p...

9 years 前 | 0 个回答 | 0

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Load MAT files and Then Save new MAT file with same Name after calculations
If I have a series of MAT files and want to load it and then perform some calculation on it and then save all the new MAT files ...

9 years 前 | 1 个回答 | 0

1

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Save variable in vector form after a loop
here is y code for calculating norm between two vectors and then saving the minimum number and its index in variable r and c, i ...

9 years 前 | 1 个回答 | 0

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