質問

Transform a PDE with Laplace transform
Hello, I have a problematic PDE that I am not sure can be solved at all, however I thought it could be transformed to another fo...

6年以上 前 | 0 件の回答 | 0

質問

Solving an equation with integral with one variable
Hi, how can I calculate the following equation involving an integral in matlab? C + Integral_{-4}_{4} e^(x^2)*x^2 dx = 1 w...

6年以上 前 | 2 件の回答 | 0

質問

First input argument must be a function handle.
Hi, I am trying to integrate using the following function: if true syms h g x pi h = 2.0545 g = 5.3442 C = 1 y = C -...

6年以上 前 | 1 件の回答 | 0

質問

Plotting a result from dsolve
Hi, I'd like to add a plotting command for the result of syms h g h = 1 g = 4 dsolve('h^2*(D2v)+2*i*g*h*Dv-g^2=0...

6年以上 前 | 1 件の回答 | 0

質問

Problems plotting a function
Hi, I am trying to plot the result from the given script: syms f(x) x g h h = 1.0545718.*10.^-34 g = 5.33.*10.^-28 ...

6年以上 前 | 1 件の回答 | 0

質問

Solving a complex PDE in 2D numerically
Hi, I have Matlab and in it, using Matlab PDE Toolbox does provide a solution to my PDE. I have the following PDE: u NABL...

6年以上 前 | 0 件の回答 | 0

質問

Calling the results from two scripts in one third script
Hello, I have two scripts which both generate a result, one script is called 1.m and the second 2.m. Each generates the resul...

6年以上 前 | 1 件の回答 | 0

質問

Operator script does not commute
Hi, I have the given script: syms f(x,y) n = 2; m = 2 res = exp(-i.*(x+y)) for k=1:m res = simplify(di...

7年弱 前 | 0 件の回答 | 0

質問

How can I insert a function in a result in a script?
Hello, I have the final part of a fully working script: res = (-1)^(n+m)*res where "res" gives the result: diff(f(x,y),...

7年弱 前 | 0 件の回答 | 0

回答済み
Error in command for partial differentiation
John ,please see closer, I have removed one redundant bracket after the y at the beginning, otherwise, it is fine: y*x*(exp(-...

7年弱 前 | 0

質問

Error in command for partial differentiation
Hi, I am trying to run this simple command: y*(x*(exp(-i*(x+y)) - diff((exp(-i*(x+y)), x)) - x*diff((exp(-i*(x+y)), y) + diff...

7年弱 前 | 3 件の回答 | 0

質問

How can I make a script for an operation on a function in Matlab?
Hi; I am trying to calculate a series of polynomials in Matlab. And I have the given form for it: f(x) = A*(-1)^n*[(d/dx)-x]^...

7年弱 前 | 0 件の回答 | 0