Digitalis obscura the use of herbal medicinal remedies using "Digitalis obscura" has lessened to a great degree because of the knowledge of its high toxicity. In ethnoveterinary medicine, the flowering stems of "Digitalis obscura" were traditionally used to promote wound healing and treat toothaches in animals. It is one of twenty-three species traditionally used in Granada to treat trauma or poisoning in animals. All parts of "Digitalis obscura" are poisonous if ingested raw, including the roots and seeds. The most potent parts of the plant are the upper leaves. All foxgloves are highly toxic if eaten because they contain various cardiac glycosides
Derive (computer algebra system) calculators. 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