# HP 15c Keyboard Layout and Key Features

### HP 15c Display:

1 Line LCD Display.

Number format: FIX, SCI, ENG.

Status Annunciators.

### HP 15c Calculator Logic:

RPN Logic system.

4 Stack levels with Last x.

Storage Arithmetic (STO +, -, x, /) with recall Arithmetic.

### HP 15c Calculator Math:

+, -, x, / , 1 / x, sq. root, x2, LOG x, 10x, LN x, ex, yx, pi, % , % change.

Integer truncation and Absolute value.

Trigonometric functions (SIN, COS etc.).

Hyperbolic trig. (SINH, COSH etc.).

3 of trig. modes (degrees, radians, grads).

### HP 15c Advanced Math:

Solver / root finder.

Numeric integration.

Complex numbers.

Matrix operations.

### HP 15c Statistical:

Mean, standard deviation (2 of variables).

Summation of n, x, x2.

Summation of n, x, x2, y.

Summation of n, x, x2, y, xy.

Summation of n, x, x2, y, y2, xy.

Random number generator.

Linear regression, estimate.

Correlation coefficient.

Factorial, Gamma, Combinations and permutations.

Polar / rectangular conversions.

Decimal hrs / hrs.min.sec. conversions.

### HP 15c Memory and Programming:

RPN Programming language.

RAM / Max 67 of variables or addressable registers.

Max 448 of program steps with merged program steps capability.

Manual register / program memory allocation.

10 Flags, 12 Conditional tests, 7 Subroutine levels.

Indexed looping (increment by + / - 1, end at 0).

Indexed looping (choice of increment and end).

Multiple index / loop registers Loop only.

Global program label addressing.

Indirect / computed addressing and control.

Program step insert / delete.

Updated On: 13.09.15