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The signature of a metric tensor is defined as the signature of the corresponding quadratic form. [2] It is the number (v, p, r) of positive, negative and zero eigenvalues of any matrix (i.e. in any basis for the underlying vector space) representing the form, counted with their algebraic multiplicities.
It is still common for a business letter to include, at the end, a list of names preceded by the abbreviation "CC", indicating that the named persons are to receive copies of the letter, even though carbon paper is no longer used to make the copies. An alternative etymology is that "c:" was used for copy and "cc:" indicates the plural, just as "p."
In certain languages, the final form or terminal form is a special character used to represent a letter only when it occurs at the end of a word. Some languages that use final form characters are: Arabic, Hebrew, Manchu and one letter in Greek . [1] [2] The lowercase Latin letter "s" had separate medial and final (s) in the orthographies of ...
A valediction (derivation from Latin vale dicere, "to say farewell"), [1] parting phrase, or complimentary close in American English, [2] is an expression used to say farewell, especially a word or phrase used to end a letter or message, [3] [4] or a speech made at a farewell.
Create a personalized email signature to automatically add to each outgoing email. This feature ensures all your AOL messages maintain a consistent, professional look with minimal effort. 1. Click the Settings Menu icon | select More Settings. 2. Click Writing email. 3. Click the Toggle button to enable or disable a signature for your email ...
Create, add, delete, or set a default email signature in AOL Desktop Gold Give your emails a finishing touch by creating up to five email signatures within Desktop Gold. Set your favorite signature to your default signature and it will automatically be added to the end of every email that you compose.
In mathematics, the tombstone, halmos, end-of-proof, or Q.E.D. symbol "∎" (or " ") is a symbol used to denote the end of a proof, in place of the traditional abbreviation "Q.E.D." for the Latin phrase "quod erat demonstrandum". It is inspired by the typographic practice of end marks, an element that marks the end of an article. [1] [2]
To date, Form Energy has raised more than $1.2 billion from investors. _____ The last line of this story has been corrected to reflect that the $1.2 billion raised so far is only from investors ...