Eta is the seventh letter of the Greek alphabet was borrowed also of into the Cyrillic script with the sound value. This sign developed later the sign for spiritus asper and rough breathing. Itacism shares this function with digraphs and several other letters. Example coordinate in the η ³ mode and the η ¹ mode to palladium. Quantum field theory and Relativity represents the metric tensor of Minkowski space. Neural network backpropagation stands for the learning rate. Electronics stands for the ideality factor of a bipolar transistor, appears in contexts.
Power electronics stands for the efficiency of a power supply. Atmospheric science represents absolute atmospheric vorticity. These characters are used only as mathematical symbols. Stylized Greek text be encoded using the normal Greek letters.
Aristotle are was shown already correct by August Boeckh