Simplified Common Lisp reference
Symbol class: Functions, Evaluation, Flow Control, Definitions and Syntax
Symbol type: function
funcallfnargs(zero or more) => value
Argument description:
fn a function designator
args call arguments

FUNCALL function call supplied function with specified arguments. Argument list is same as in the rest of funcall call. Function designator is function itself or symbol specifying global function name. Note that there is limitation of maximal number of arguments, see CALL-ARGUMENTS-LIMIT constant. See also APPLY, LAMBDA.

(funcall #'+ 1 2 3 4 5 6) => 21
(funcall #'sin 1.0) => 0.84147096
(funcall 'sin 1.0) => 0.84147096
Function indexFull documentation for funcall (HyperSpec)