Sunday, November 25, 2012

Two more calculators added to the collection.

I love swap meets and pawn shops. Eddie

HP 20S: Acoustics Programs

HP 20S: Acoustics Programs Program A: Speed of Sound in Dry Air cs = 20.05 × √(273.15 + T°C) Code: 01: 61, 41, A: LBL A 02: ...