Sigma character - TYPE returns 3 (function)

[deSitter]

(12-17-2023 04:19 AM)Wes Loewer Wrote:  

(12-17-2023 03:47 AM)deSitter Wrote:  Where is this function defined? I want to use sigma for a list. Thanks in advance.

Press the toolbox key, then in the Math menu select List then scroll down till you see Σ List. You can use it with a list variable, such as ΣLIST(L1), or with a list directly, such as ΣLIST({1,2,3}).

Is this what you had in mind?

Thanks but no - lowercase sigma. I am setting up my calculator for doing quantum field theory. I need lowercase sigma for a list containing the 4 Pauli sigma matrices (one of them is 2d identity). This works for gamma for the Dirac gamma matrices because gamma is not defined anywhere - but somewhere, likely an app, sigma is defined as a function (type 2 not 3 that was a typo). It must be a globally defined function so I assume it is living in some useless app.

thanks

-drl