Source Citations Added for All Calculators
Every calculator now shows formula sources, methodology, and authoritative references for complete transparency.
تتبع جميع التحديثات والتحسينات والآلات الحاسبة الجديدة المضافة إلى CalcOnce. نعمل باستمرار على تحسين أدواتنا لضمان الدقة وإضافة ميزات جديدة بناءً على ملاحظات المستخدمين.
Every calculator now shows formula sources, methodology, and authoritative references for complete transparency.
Added P-Value Calculator, Confidence Interval Calculator, and enhanced Mean Median Mode Calculator with step-by-step solutions.
Added 15+ new math calculators including Pythagorean Theorem, Slope, Logarithm, Square Root, LCM, GCF, and Scientific Notation calculators.
Added Margin Calculator, Markup Calculator, Break-Even Calculator, and Margin vs Markup comparison tool for business owners.
Launched comprehensive date/time calculators including Business Days, Meeting Planner, Countdown, and Moon Phase calculators.
Updated Income Tax Calculator with official 2026 federal tax brackets and standard deductions.
Updated PayPal fee rates for 2026 including new Checkout and Invoicing fee structures.
Added property tax and PMI calculations to mortgage calculator with live FRED mortgage rate data integration.
Fixed moon phase calculation to use UTC dates consistently, ensuring accuracy across all time zones.
Updated sunrise/sunset calculator to use correct NOAA zenith angle (90.833°) for atmospheric refraction.
تريد معرفة متى نضيف حاسبات جديدة أو نجري تحديثات مهمة؟ تابعنا على وسائل التواصل الاجتماعي أو تحقق هنا بانتظام.