Visual Calculator, LITE

Visual Calculator is the must-have tool for any calculations!
User friendly and powerful. Traditional mathematical notation as well as variables for intermediate values. A polished application layout and carefully chosen formula proportions. An amazing experience with a combination of handwritten and computer calculations.
Features:
- multiline calculations on one sheet*
- traditional maths notation, incl. fractions, roots, brackets, exponents and indexes
- output settings
- user defined variables
- user defined functions
- tables with autosum
- customized keyboard layout for maths expressions input
- scrollable and zoomable input area
- syntax highlighting
- in place error notification
- several fonts and colour themes to suit different tastes
- portrait and landscape interface
- select/copy/cut/paste functions
- save/open functions*
- undo/redo history
- iCloud Drive support (iOS 8 or later)
- calculations sharing and printing
- slide over and split view support (iOS 9 or later multitasking on eligible iPad models)
Mathematics:
- basic operations: +, -, ×, ÷, /
- exponents, roots, exponential functions: x², √, e²
- additional operations: %, n!, div, mod
- brackets, rounding, absolute value, fractional part
- trigonometry: cos, sin, tan, cosh, sinh, tanh and reciprocal functions
- logarithms: log, ln, lg
- constants: π, e, φ