claim: There are many airports contained in the San Francisco Bay Area.
evidence: PV-WAVE -LRB- Precision Visuals - Workstation Analysis and Visualization Environment -RRB- is an array oriented 4GL programming language used by engineers , scientists , researchers , business analysts and software developers to build and deploy visual data analysis applications .. 4GL. 4GL. programming language. programming language. PV-WAVE was originally developed by a company called Precision Visuals , based in Boulder , CO. .. In 1992 , the IMSL Numerical Libraries and Precision Visuals merged and the new company was renamed Visual Numerics .. IMSL Numerical Libraries. IMSL Numerical Libraries. In 2009 , Visual Numerics was acquired by Rogue Wave Software .. Rogue Wave Software. Rogue Wave Software. PV-WAVE is closely related to the IDL -LRB- programming language -RRB- , from whose code-base PV-WAVE originated .. programming language. programming language. The shared history of PV-WAVE and IDL began in 1988 , when Precision Visuals entered into an agreement with Research Systems , Incorporated -LRB- RSI , the original developer of IDL -RRB- under which Precision Visuals resold IDL under the name PV-WAVE .. In September 1990 , Precision Visuals exercised an option in its agreement with RSI to purchase a copy of the IDL source code .. Since that time , IDL and PV-WAVE have been on separate development tracks  : each product has been enhanced , supported , and maintained separately by its respective company .. Due to their common history , PV-WAVE and IDL share a similar FORTRAN-like syntax , as well as many common commands , functions , and subroutines .