unknown


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unknown

Maths a variable, or the quantity it represents, the value of which is to be discovered by solving an equation; a variable in a conditional equation

unknown

i. A code meaning the information is not available.
ii. An unidentified target.
References in classic literature ?
Say monsieur, and speak quickly," replied the unknown, with that haughty accent which admits of neither discussion nor reply.
The unknown bore him on he knew not to what frightful hurt, and he yelped and ki-yi'd unceasingly.
In 1715," replied the unknown, "the astronomers Louville and Halley mistook for lunar phenomena some which were purely terrestrial, such as meteoric or other bodies which are generated in our own atmosphere.
Not expecting to come on the enemy down by the stream, and having stumbled on him in the fog, hearing no encouraging word from their commanders, and with a consciousness of being too late spreading through the ranks, and above all being unable to see anything in front or around them in the thick fog, the Russians exchanged shots with the enemy lazily and advanced and again halted, receiving no timely orders from the officers or adjutants who wandered about in the fog in those unknown surroundings unable to find their own regiments.
Murray, of Horton Lodge, near O , about seventy miles from our village: a formidable distance to me, as I had never been above twenty miles from home in all the course of my twenty years' sojourn on earth; and as, moreover, every individual in that family and in the neighbourhood was utterly unknown to myself and all my acquaintances.
And I should like you better still, if I had time," answered the eyes of the unknown girl.
All eyes were turned towards this man--for to all except Athos he was unknown.
The unfortunate girl is pining away in some unknown land, where perhaps no foot of man has ever trod, and I shall see her no more.
No more doughty nor daring was Columbus, venturing all that he was to the unknown, than was Jerry in venturing this jungle-darkness of black Malaita.
The bride and bridegroom talk and laugh apart, as has always been their manner; and the Buffers work their way through the dishes with systematic perseverance, as has always been THEIR manner; and the pokey unknowns are exceedingly benevolent to one another in invitations to take glasses of champagne; but Mrs Podsnap, arching her mane and rocking her grandest, has a far more deferential audience than Mrs Veneering; and Podsnap all but does the honours.
To be held paralyzed, with one's back toward some horrible and unknown danger from the very sound of which the ferocious Apache warriors turn in wild stampede, as a flock of sheep would madly flee from a pack of wolves, seems to me the last word in fearsome predicaments for a man who had ever been used to fighting for his life with all the energy of a powerful physique.
In social intercourse he gives you the surface that he wishes the world to accept, and you can only gain a true knowledge of him by inferences from little actions, of which he is unconscious, and from fleeting expressions, which cross his face unknown to him.