A compendium of spherical astronomy with its applications to the determination and reduction of positions of the fixed stars (1906)
Newcomb, Simon, 1835-1909 · New York, The Macmillan company; London, Macmillan and co., ltd. · leaf 77
certain modulus of error, then the 56 THE METHOD OF LEAST SQUARES [§30. infinitesimal probability that the error shall lie between thelimits X and x + dx is assumed to be given by the formula: dp = -—i=e ^dx. ..(22) This formula may be graphically represented by the curveshewn in Fig. 2, in which,… … If we have an indefinitely great number of errors distributedin magnitude according to this law, we may represent each errorby measuring off its magnitude from the origin 0 to the rightor left, according as the error is positive or negative, and thenmarking it by a point. Since the ordinate at each…
Spherical astronomy · Stars
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