StackCAS - RPN Calculator

Neravo LLC

In-app purchases

About this app

StackCAS is an offline calculator for Android that combines an RPN stack workflow with exact symbolic math.

It is designed for people who want a compact, keyboard-driven calculator for algebra, calculus, matrices, and complex numbers without giving up exact results.

Features:

- RPN stack-based workflow inspired by classic handheld calculators
- exact math with symbolic and numeric workflows
- exact symbolic algebra, simplification, and equation solving
- calculus tools including symbolic differentiation and integration
- matrix and vector calculations, including determinant, transpose, REF, eigenvectors, LU, and SVD
- complex-number calculations
- persistent stack, variables, and undo history
- offline operation with no account, no ads, and no analytics

What’s new

Improved graphing with pinch zoom, panning, and function point tracing.

Added illustrated key help with practical keypad examples.

Improved array input, equation solving, and degree calculations.

Fixed statistics, handling of large results, and settings persistence.