RPN Calculator

Duplicate X and lift the stack

Add Y and X

Subtract X from Y

Multiply Y and X

Divide Y by X

Raise Y to the power X

Square root of X

Square X

Reciprocal of X

Natural logarithm

Base-10 logarithm

Natural exponent

Base-10 exponent

Absolute value or magnitude

Round X to nearest integer

Integer part of X

Fractional part of X

Factorial of X

Compute Y percent X

Sine of X

Cosine of X

Tangent of X

Inverse sine of X

Inverse cosine of X

Inverse tangent of X

Push pi onto the stack

Push Euler's number onto the stack

Change sign of the current entry or X

Append exponent entry marker

Delete the last entered character

Clear X and entry buffer

Drop X and pull the stack down

Swap X and Y

Roll the stack down

Roll the stack up

Recall the last X value

Set degree angle mode

Set radian angle mode

Set gradian angle mode

Use fixed decimal display

Use scientific notation display

Use engineering notation display

Use free display formatting

Store X into a register

Recall a register into X

Clear all registers

Combine Y and X into a complex value

Complex conjugate of X

Real part of X

Imaginary part of X

Magnitude of X

Phase angle of X

Create a matrix from JSON rows

Transpose matrix X

Determinant of matrix X

Inverse of matrix X

Save a program source under a name

Run a saved program