What is Capias Ad Computandum?

Legal Definition
Practice. A writ issued in the action of account render, upon the judgment quod computet, when the defendant refuses to appear, in his proper person, before the auditors, and enter into his account. According to the ancient practice, the defendant, after arrest upon this process, might be delivered on main-prize, or in default of finding mainpernors, he was committed to the Fleet prison, where the auditors attended upon him to hear and receive his account. As the object of this process is to compel the defendant to render an account, it does not appear to be within the scope of acts abolishing imprisonment for debt. For precedents, see Thesaurus Brevium, 38, 39, 40; 3 Leon. 149; 1 Lutw. 47, 51 Co. Ent. 46, 47; Rast. Ent. 14, b, 15.
-- Bouviers Law Dictionary
Legal Definition
In the action of account render, after judgment of quod computet, if the defendant refuses to appear personally before the auditors and make his account, a writ by this name may issue to compel him.
-- Black's Law Dictionary
Legal Definition
A writ commanding a defendant to account upon his refusal.
-- Ballentine's Law Dictionary