https://help.scilab.org/docs/2025.0.0/en_US/acot.html
acot - Computes the element-wise inverse cotangent of the argument.
the elementacotwiseinverseargument
https://austinlivetheatre.blogspot.com/2009/09/arts-news-acot-becomes-gaca-so-get-your.html
Austin Live Theatre: Arts News: ACOT becomes GACA, so Get Your Art On in October
This just in, as the newscasters used to say, waving a teletype: On September 24 Austin Mayor Lee Leffingwell will proclaim October the mont...
live theatrearts newsaustinacotbecomes
https://support.microsoft.com/en-au/office/acot-function-dc7e5008-fe6b-402e-bdd6-2eea8383d905
ACOT function - Microsoft Support
Syntax: ACOT(number)
microsoft supportacotfunction