Because it was already created elsewhere, as U+210E PLANCK CONSTANT ℎ. Unicode will not differentiate between the symbol for the Planck Constant, and a mathematical italicised lowercase h (which is what the Planck Constant is).
Because it was already created elsewhere, as U+210E PLANCK CONSTANT ℎ. Unicode will not differentiate between the symbol for the Planck Constant, and a mathematical italicised lowercase h (which is what the Planck Constant is).