Derive was a computer algebra system, developed as a successor to muMATH by the Soft Warehouse in Honolulu, Hawaii, now owned by Texas Instruments.

Derive was implemented in muLISP [de], also by Soft Warehouse.

[2] It was discontinued on June 29, 2007, in favor of the TI-Nspire CAS.

Since Derive required comparably little memory, it was suitable for use on older and smaller machines.

It was available for the DOS and Windows platforms and served as an inspiration for the computer algebra system in certain TI pocket calculators.