call

call(f, A). A being a vector, evaluates f(A[1], …, A[#A]).

Remark. Note that, if #A=1, call(f, A)=apply(f, A)[1]; but unlike apply, call can be used if the function f needs several arguments. For example:

? printc(x[..])=call(printsep,[“:”,x]);
? printc(1,2,3)
1:2:3

or

? call(idealprimedec,[nfinit(x^2+1),3])
%1 = [[3, [3, 0]~, 1, 2, 1]]