Digitalis × fulva Digitalis × fulva Digitalis" × "fulva, the strawberry foxglove, is a fertile hybrid between "Digitalis grandiflora" and "Digitalis purpurea". This perennial herbaceous plant reaches on average a height of . The erect stems rise from a semi-evergreen basal rosette of soft leaves. It has typical tall spikes of large tubular flowers. The color ranges from strawberry pink (hence the common name) to mauve. The flowering period extends from late spring to early summer. It prefers neutral or mildly acidic substrate and rich, moist and regularly watered soil, in full sun or in partial shade. This plant, which is widely marketed
Derive (computer algebra system) Derive (computer algebra system) 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 , also by Soft Warehouse. The first release was in 1988 for DOS. It was discontinued on June 29, 2007 in favor of the TI-Nspire CAS. The last and final version is Derive 6.1 for Windows. 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 was used also in TI pocket