entropy

• مصطلح علمي يشير إلى مقياس لعدم الانتظام أو العشوائية في نظام ما، ويُستخدم خاصة في الديناميكا الحرارية حيث يقيس درجة تشتت الطاقة، وفي نظرية المعلومات حيث يقيس مقدار عدم اليقين أو المحتوى المعلوماتي.

A scientific term that can refer to a measure of uncertainty or disorder in a system, particularly in thermodynamics and information theory.

غير معدود

1. Thermodynamic quantityC1formalscientific

   A measure of the disorder or randomness in a closed system, representing the amount of energy unavailable for work.

   الإنتروبيا

   • The second law of thermodynamics states that entropy in an isolated system always increases.
   • Entropy is often described as the tendency of systems to move toward greater disorder.
   • Calculating the entropy change helps engineers design more efficient engines.

   المرادفاتdisorderrandomness

2. Measure of uncertaintyC1formalscientific

   In information theory, a numerical measure of the unpredictability or uncertainty of an outcome.

   مقياس عدم اليقين

   • High entropy in a data stream indicates a high level of randomness.
   • The entropy of a fair coin toss is one bit.
   • Shannon's entropy formula is fundamental to data compression algorithms.

   المرادفاتrandomnessuncertaintyunpredictability

   الأضدادcertaintypredictability