The new HP 15c maintains the same intelligent design
as the original but offers up to 100x faster processing
speed. Its compact size and lightweight metal frame
allows users to conveniently carry the HP 15c from
meeting to meeting. Unlike other scientific calculators,
the HP 15c also offers an intuitive, horizontal interface,
just like the original.

Product specifications
Programming capabilities include conditional
and unconditional branching, subroutines, flags,
and editing. Plus, users can program up to 672 steps
of calculations (increased from 448). The HP 15c also
offers direct and indirect storage in up to 99 registers
(increased from 67). This handy calculator operates
using Reverse Polish Notation (RPN), reducing
the number of keystrokes to complete calculations.
• Best used for: Engineering, Science, Mathematics,
Physics
Built-in functions: Over 130
• Advanced functions: Trigonometric, exponential,
basic statistics, complex number calculations,
matrix operations, integration, keystroke programming
• Power supply: 2× CR2032 batteries
• Auto Power off: 5 minutes
• Display: 1 line × 10 characters
• Display type: LCD, 7-segment