Venn Diagram Shader vs ODE Solver

--- Note: This app is intended as a mathematical tool. It is not a painting tool, hence you will be able to annotate drawings or shade different areas with different colors. Nevertheless, you may export Venn diagrams from this app into your favorite app for editing. --- Venn Diagram Shader allows you to create and shade Venn diagrams and get the equivalent expression in set notation! You may even enter an algebraic expression and Venn Diagram Shader will give you step-by-step instructions on how to shade! Features: - Supports Venn diagrams with 1 to 7 sets - Create your own Venn diagrams or select from 18 preset diagrams - Easy Venn diagram editor that allows creating beautiful and well-aligned Venn diagrams - Touch to shade or unshade areas - Automatically displays equivalent set notation expressions - Enter an expression and view step-by-step instructions on how to shade the Venn diagram - Support for Venn diagrams with subsets and disjoint sets - Support all sets operations and constants: complement, intersection, union, set difference, relative complement, symmetric difference, universality, empty set - Customize color for shading and other Venn diagram elements - Save and share Venn diagrams

ODE Solver – Solve ordinary differential equations with ease. • Solve systems of ODEs with initial boundary conditions using the 4th-order Runge-Kutta method. • View results in interactive plots and lists, and export via email. • Enter variables easily using the ”$” prefix (e.g., $x, $u, $t) and let the app handle the calculations. Example: Typical Pendulum dx/dt = $u du/dt= -pi()**2/4*sin($x)-0.1*$u • Supports a full set of operators (+, -, *, /, **) and functions (sqrt, log, ln, exp). • Extensive trigonometric functions including sin, cos, tan, their inverses, reciprocals, and hyperbolic variations. • Built-in constants: π, π/2, π/4, e. • Smart entry fields: • Background changes red/green to highlight unpaired/paired parentheses. • Recognizes errors and displays warnings. • Custom keypad and cursor arrows for smooth formula editing. Perfect for engineers, students, and researchers who need fast, reliable ODE solutions on the go.