The keyboard shortcut notation ctrl plus esc means you press the Control key concurrently with the Escape key. On a Windows PC, the Ctrl + Esc shortcut produces the Start Menu.
Powers are a convenient shortcut for repeated multiplication.
shortcut key
22 x 32 = 36
3 x 5 x 7
circuit means a closed path followed or capable of being followed by an electric currents
Underline
8.6
In Chinese, "Sinh" does not have a direct translation. It may be a transliteration of a foreign name or word that does not have a specific meaning in Chinese.
There is no systemout object in JavaScript. Do you mean Java?
If you mean 1.5*10^6 in scientific notation then it is equivalent to 1,500,000 in standard notation
Two hundred and five is word notation. 205 is number notation.