50 years ago the world's first scientific pocket calculator was launched in Feb 1972 e.g. the HP-35. Celebrate 50 years of pocket calculators with homemade calculator or implementing a useful everyday formula on a small handheld device
50 years ago the world's first scientific pocket calculator was launched in Feb 1972 e.g. the HP-35. Celebrate 50 years of pocket calculators with homemade calculator or implementing a useful everyday formula on a small handheld device
