Pineapple English vs Binomial Coefficient PRO

Turn vocabulary practice into a fun matching game. See the picture, hear the word, find the match, and clear the cards. Through repeated play, children can practice 3,000+ everyday English words and gradually build a direct connection between images and English. Pineapple English is a vocabulary learning app designed for young learners. Instead of simply memorizing word lists, children learn through pictures, sounds, and games—seeing, hearing, recognizing, and using words again and again in meaningful contexts. For example, when a child sees an apple, we want them to think “apple” directly, rather than first thinking of the word in their native language and then translating it into English. The goal is to build a natural, direct connection between the object and the English word. 【3,000+ Illustrated Words】 Explore 3,000+ commonly used English words, with more added regularly. Every word comes with a clear, engaging illustration and both British and American English pronunciation. Topics include animals, fruit, food, transportation, home, colors, nature, and more. 【Multiple Vocabulary Books】 Includes vocabulary collections based on popular learning frameworks, such as CEFR and Cambridge English for Young Learners. From first words to more advanced vocabulary, children can choose the right word book for their learning stage. More vocabulary books are continuously being added. 【Word Matching Game】 Turn vocabulary review into a game. Match words with the correct pictures and clear the pairs. Each round gives children another chance to recognize, repeat, and remember vocabulary naturally. 【Listen & Choose】 Listen to an English word and choose the correct picture. With instant feedback, streaks, and learning results, children can practice listening comprehension and build faster word recognition through play. 【British & American Pronunciation】 Switch freely between British and American English pronunciation. You can also customize automatic audio playback and choose how many times each word is played. 【Optimized for iPad】 Designed specifically for larger iPad screens, with bigger pictures, cards, and touch areas for a more comfortable learning experience. The spacious layout makes it easier for children to browse, listen, and play while reducing unnecessary visual strain. 【Free to Try】 • Enjoy full access to 100+ words for free, with no time limit • Upgrade to Pro to unlock all 3,000+ words and all vocabulary games • Monthly, annual, and one-time lifetime purchase options are available 【Multiple Languages】 Supports Simplified Chinese, Traditional Chinese, Japanese, German, Spanish, and Korean. More words, new topics, vocabulary books, and learning games are continuously being added. --- If you have any suggestions or feedback, feel free to contact us: Xiaohongshu: 独库车神 Email: deepseals@icloud.com 【Purchases & Subscriptions】 • Payment will be charged to your Apple Account upon confirmation of purchase • Monthly and annual subscriptions automatically renew unless canceled at least 24 hours before the end of the current subscription period • Your Apple Account will be charged for renewal within 24 hours before the end of the current subscription period • You can manage or cancel your subscription in Settings → Apple Account → Subscriptions • Lifetime membership is a one-time purchase and does not automatically renew Privacy Policy: https://maxc.cc/privacy-policy/ Terms of Use: https://maxc.cc/user-agreement/

This app provides two kind of calculations. One is the calculation of the binomial coefficient. The other one is the calculation of n factorial. You have to enter n and/or k to calculate the result. Only natural numbers are supported. The solution is shown step by step. All calculations are stored in the history. The final solution can be shared. [ Contents ] - modes for binomial coefficient and n factorial - n and/or k must be entered - results are calculated and shown in detail - the formula behind factorial and every step is shown - history function to save the input - detailed solution - only natural numbers are supported - no ads! [ Usage ] - there are fields for entering values using a special keyboard - press the check mark button at the bottom right to start the calculation - if values are missing, the relevant field is highlighted in yellow - if the values are wrong, the affected field will be highlighted in red - the entries in the history can be deleted or sorted - if you select an entry in the history, it will be automatically loaded for the calculation - the whole history can be deleted by pressing a button - solutions can be shared - n must be greater than or equal k