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z (EN)
písmeno, symbol

Toto slovo může být také tvarem slova:
Z (písmeno, symbol)

písmeno “z”

z
  1. malé písmeno "z"
    The word "zip" starts with the letter "z".

symbol “z”

z
  1. reálná proměnná v matematice, když se již používají x a y
    The the equation is x + 2y + 3z2 + u = 7.
  2. komplexní proměnná v matematice
    Let z = x + yi, where x is the real part and y is the imaginary part of the complex number.
  3. třetí souřadnice v 3D kartézském systému v matematice
    In the three-dimensional system, a point can be represented as (x, y, z).
  4. hodnota standardní normální náhodné veličiny ve statistice
    In our study, z > 2 indicated that the test results were significantly above average.
  5. symbol pro atomové číslo v chemii
    In the periodic table, the element oxygen has a z = 8, indicating it has 8 protons in its nucleus.
  6. symbol pro červený posuv v astronomii
    Astronomers measured z = 1.5 for the distant galaxy, indicating it is moving away from us at a significant speed.