help regarding ((differen​tiation-1)​^n)*x^n

how to simulate this equation in matlab....i am getting error 'unexpected matlab equation'.... 1/factorial(n)((d/dx-1)^n)*x^n

[Walter Roberson]

What is your actual code? The error message suggests you are trying to use implied multiplication.

[samriti bali]

hi... there is no code actually..just want to type this equation in matlab and check its output...only need to simulate this equation...want the actual syntax of ((d/dx-1)^n)*x^n

[Walter Roberson]

What is that intended to mean? The nth derivative of -1 ?

[samriti bali]

https://en.wikipedia.org/wiki/Laguerre_polynomials.... sir i have sent u d link ...please check the 4th equation...this is the equation i wanted to simulate

[Dimitris Kalogiros]

Do you want to differentiate (n-1) time the function f(x)=x^n ? Is that your question ?

[samriti bali]

https://en.wikipedia.org/wiki/Laguerre_polynomials

[Aarti Dwivedi]

Why don't you write the code yourself and then ask for help instead of pointing to an equation and asking people to write it for you? What do you mean when you say "no code, just want to type this equation in matlab and check its output"? You can check the output of any formula by breaking it down into smaller parts that a computer can compute. For this particular case, you would need to break it into factorial calculation, binomial expansion, differentiation, creating the interval of evaluation. Parts of what you need are already built into MATLAB, some you may have to write yourself. Once you have done THAT, then we can help with the difficulties you are facing.

Answer 1

[Aarti Dwivedi]

laguerreL can generate Laguerre polynomial and function for you, since that is what you are looking for, as per your comments.

[samriti bali]

thank u ma'm for your suggestions and help...

[samriti bali]

thanks a lot ma'm....laguerreL has really helped me...will take care of ur points in future...

[Aarti Dwivedi]

If the answer helped you, click on "accept answer".