# User Portlet

Yehuda Ben-Shimol
Discussions
There is a way. Look at the Notations package Notation/guide/NotationPackage
It is recommended to look at Wolfram's notes of the NKS book (for the specific chapter). This will help you figure out the programming part, as there are numerous programming examples written by Stephen. best
You function should be called as radiusOperator[arg1,arg2,arg3,...] And this happened when you use Apply, since you replace the head List with a head which is your function radiusOperator When you used Map the way you called it, the...
use this as a starter (Cos[27 W t] + 3 Cos[W t] + Cos[15 W t] + 4 Cos[28 W t]) /. Cos[x_ W t] :> 0 /; Not[MemberQ[{1, 29, 15, 31}, x]] You were counting on the fact that Mathematica puts the numbers first and only then the symbols....
Purple, Lightblue and their blends are all RGB colors Purple // FullForm returns RGBColor[0.5,0,0.5] LightBlue//FullForm returns RGBColor[0.87,0.94,1] and Blend[{Purple,LightBlue},0.5]//FullForm returns...
From the documentation: > If an explicit threshold value is given, Binarize ignores the Method option. » so either use Manipulate[Binarize[yourImage, binOnly], {binOnly, 0, 1}] or Manipulate[ Binarize[yourImage, ...
I repeated your commands and Mathematica replied that there is a chatroom of this name already The next step (did you take this step?) is to open a Chat session (File -> New -> Chat Session) then you will have the option to join a chat in this...
Well, I cracked that. Summary 1. Avoid using n[1], n[2],... as variable names. n1, n2,... work for the assignment. n[1],n[2],... do not 2. Achieve an additional level of evaluation "hold" using strings and ToExpression` to get back the...
I use Mac OS X (Catalina) on various computers, using Mathematica v 12.1 All behave the same... No experience with WA notebooks ... best yehuda
It was more beneficial to also provide a notebook with the code. This way we wouldn't have to copy so many cells, one by one, into Mathematica. Anyway, I looked at your code (after copy and paste...) and the instruction fit =...