Learn programming with code examples for and SQL. Access solutions for substring extraction, method declaration, database queries, table joins, data sorting, and SQL Server data types. Find ready-to-use code from books and trusted online sources.
Puzzle game lets users create chains from 1 to the highest by dragging horizontally, vertically, or diagonally. Players can overwrite or erase existing chains. Tracks progress and offers varying difficulty levels for mental exercise.
Provide conversation starters with a fun interface. Select random to spark discussions. Share with friends or save favorites for later use. Organize topics into categories for different settings.
Provides samples for Swift, Java, JavaScript, Python, Rust, PHP, C#, C++, Golang, TypeScript, Kotlin, Ruby, and SQL. Includes over 300 examples per language. Offers tested snippets from books and online resources.
Learn with focused vocabulary building using the Ebbinghaus memory method. Study curated word decks covering TORFL/CEFR levels and business terms. Customize daily word count and track progress.
Learn to calculate the day of the week for any between 1800 and 2200 using the Doomsday Algorithm. Track progress with personal times. Compare results with calculated values. Save custom mnemonics for special dates in the Doomsday List.
Learn Akan Twi, Yoruba, Igbo, Swahili, and Ga through interactive lessons. Explore African cultures with content on history, traditions, and language. Access free lessons and connect with a community for cultural and linguistic development.
Take a personality test to determine your type. Receive detailed analysis and insights about your traits. Share results with friends. Access continuous updates and improvements.
Adjust ion concentrations and visualize potentials
Calculate and visualize Nernst and Goldman potentials based on user-defined ion concentrations and permeability. Adjust extracellular and intracellular concentrations of potassium, sodium, and chloride ions.
Navigate a character across a cliff by moving left or right. Jump to collect and avoid dangerous footholds. Purchase additional jumps from a coin shop to progress through multiple levels.