Analysts do it almost everywhere. Analysts do it to the limit. Analysts do it with their real parts. Analytic number theorists do it in the critical strip. Analytic number theorists do it on the critical line.
Applied mathematicians do it by computer simulation.
Banach spacers do it completely. Bayesians do it with improper priors. Catastrophe theorists do it falling off part of a sheet. Chaoticians do it with sensitive dependence. Class field theorists do it by capitulation.