Sifra: Math Notes & Calculator

Sifra combines a scientific calculator and a math notebook in one workspace. Write, calculate, solve equations, and organize your work in personal notebooks. Scientific calculator Arithmetic, percentages, parentheses, powers, roots, trigonometric functions, and calculation history. Interactive notebook Write with Apple Pencil or your finger, add text and equations, calculate from handwriting, and explore movable, resizable graphs. Define variables and adjust calculations and graphs with sliders. Choose squared or lined paper, or import an image or a PDF page to write on. Learning and practice Generate similar linear equations, reveal answers when ready, and save formulas in a personal library. Choose an unknown and enter values to calculate supported formulas. Solution checking evaluates supported transitions between confirmed lines; it does not assess every type of solution. Save,…