technology & mediameasurementeducation
HP 11c Calculator
A classic scientific calculator from Hewlett-Packard, known for its durable design and use of Reverse Polish Notation (RPN), popular among engineers and scientists since the 1980s.
A classic scientific calculator from Hewlett-Packard, known for its durable design and use of Reverse Polish Notation (RPN), popular among engineers and scientists since the 1980s.