n = 5e6;
a = rand (n, 1);
b = rand (n, 1);
disp ("operations");
tic; for i = 1:10, -a ; endfor; toc
tic; for i = 1:10, a+b ; endfor; toc
tic; for i = 1:10, a-b ; endfor; toc
tic; for i = 1:10, a.*b ; endfor; toc
tic; for i = 1:10, a./b ; endfor; toc
tic; for i = 1:10, a+=b ; endfor; toc
tic; for i = 1:10, a.*=b ; endfor; toc

disp ("mappers");
tic; for i = 1:10, exp(a); endfor; toc
tic; for i = 1:10, sin(a); endfor; toc
tic; for i = 1:10, erf(a); endfor; toc
tic; for i = 1:10, erfinv(a); endfor; toc