entropy

• 科学术语，可指系统的无序程度或不确定性度量，尤其在热力学和信息论中。

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

不可数

1. Thermodynamic quantityC1formalscientific

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

   熵

   • 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.

   同义词disorderrandomness

2. Measure of uncertaintyC1formalscientific

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

   不确定性度量

   • 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.

   同义词randomnessuncertaintyunpredictability

   反义词certaintypredictability