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Upside-down marks, simple in the era of hand typesetting, were originally recommended by the Real Academia Española (Royal Spanish Academy), in the second edition of the Ortografía de la lengua castellana (Orthography of the Castilian language) in 1754 [3] recommending it as the symbol indicating the beginning of a question in written Spanish—e.g. "¿Cuántos años tienes?"
Del or. Fn+← Backspace. Del or. Fn+← Backspace or Ctrl+D. Del: Ctrl+d: x: Alt+← Backspace or Search+← Backspace or Del: Delete word to the right of cursor Ctrl+Del ⌥ Opt+Del or ⌥ Opt+Fn+← Backspace. Ctrl+Del: Meta+d: dw (delete space too) or. de (keep space) Ctrl+Search+← Backspace: Delete word to the left of cursor Ctrl+← ...
A keyboard with Num Lock turned on as indicated by a LED. Num Lock or Number Lock (⇭) is a key on the numeric keypad of most computer keyboards.It is a lock key, like Caps Lock and Scroll Lock.
A typical 105-key computer keyboard, consisting of sections with different types of keys. A computer keyboard consists of alphanumeric or character keys for typing, modifier keys for altering the functions of other keys, [1] navigation keys for moving the text cursor on the screen, function keys and system command keys—such as Esc and Break—for special actions, and often a numeric keypad ...
A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula.
The less-than sign is a mathematical symbol that denotes an inequality between two values. The widely adopted form of two equal-length strokes connecting in an acute angle at the left, <, has been found in documents dated as far back as the 1560s.
The first true written positional numeral system is considered to be the Hindu–Arabic numeral system.This system was established by the 7th century in India, [1] but was not yet in its modern form because the use of the digit zero had not yet been widely accepted.
This retains the original English DVORAK design goal of keeping all vowels by the left hand, including Y which is a vowel in Swedish. The displaced punctuation symbols (period and comma) end up at the edges of the keyboard, but every other symbol is in the same place as in the standard Swedish QWERTY layout, facilitating easier re-learning.