统计学小工具 vs PDF Voice Reader .

Statistics is a simple tool to calculate some variable like MD,SD,Variance etc with the number list with you input.

【PDF Voice Reader】 turns PDFs, web articles, and scanned pages into natural-sounding narration so you can enjoy reading on the go. Smart PDF Narration Import any PDF from your device and listen to a smooth, natural voice. Adjust the speed to match your pace whether commuting, exercising, or relaxing. Web Article to Audio Paste a link and instantly receive a clean reader-friendly version, free from ads and clutter. Your reading list becomes a library you can listen to or read with ease. Camera and Photo OCR Use the camera or photo library to capture printed books and notes. Recognized text is organized into a tidy, searchable document ready for narration. Document-Aware AI Chat Ask questions about the document on hand, request key takeaways, or explore related ideas. The assistant grounds its answers in what you are reading. Notes and Bookmarks Save standout passages while you read. They are grouped by document for quick review whenever you want to revisit your insights. Reading no longer needs to wait for the right moment. Download PDF Voice Reader and let words and voice work together. Premium Account Pricing and Terms $4.99/week* $39.99/year* *Prices shown are in USD; the actual amount may be converted to your local currency based on your country or region. Payment will be charged to your iTunes account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. The account will be charged for renewal within 24 hours prior to the end of the current period and will display the renewal cost. Subscriptions can be managed by the user. Auto-renewal may be turned off by going to the user's Account Settings after purchase. Cancellation of the current subscription is not allowed during the active subscription period. Any unused portion of a free trial period (if offered) will be forfeited when the user purchases a subscription to that publication. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://jshruan.xyz/liuchangduPDF/privacy.html