New American Practical NavigatorU.S. Government Printing Office, 1841 |
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Σελίδα viii
... secant of A ; find this in the column of log . tangents , and take out the corresponding natural secant B ; then the correction will be 2 ′ ( B — 1.55 . ) The numbers in the second column are nearly equal to those in the fifth ...
... secant of A ; find this in the column of log . tangents , and take out the corresponding natural secant B ; then the correction will be 2 ′ ( B — 1.55 . ) The numbers in the second column are nearly equal to those in the fifth ...
Σελίδα xvi
... secant . Tan . signifies tangent . Cosine , Cotangent , or Cosecant of an arc , signifies the sine , tangent , or secant of the complement of that arc respectively . signifies angle . A signifies triangle . A's , triangles . signifies a ...
... secant . Tan . signifies tangent . Cosine , Cotangent , or Cosecant of an arc , signifies the sine , tangent , or secant of the complement of that arc respectively . signifies angle . A signifies triangle . A's , triangles . signifies a ...
Σελίδα 6
... secant of the arc AS . XXV . The COSECANT of an arc is the secant of the complement of that arc to a quadrant ; thus CG is the secant of the arc SH , or cosecant of the arc ' AS . XXVI . What an arc wants of a semicircle is called the ...
... secant of the arc AS . XXV . The COSECANT of an arc is the secant of the complement of that arc to a quadrant ; thus CG is the secant of the arc SH , or cosecant of the arc ' AS . XXVI . What an arc wants of a semicircle is called the ...
Σελίδα 12
... secant , and CH the cosecant of that arc BD . Then , since the triangles CDE , CGB , are similar , we shall have ( by Art . 54 ) DE : CE :: BG : CB ; that is , the tangent of an arc is to secant of the same as the sine of it is to ...
... secant , and CH the cosecant of that arc BD . Then , since the triangles CDE , CGB , are similar , we shall have ( by Art . 54 ) DE : CE :: BG : CB ; that is , the tangent of an arc is to secant of the same as the sine of it is to ...
Σελίδα 26
... secant of any arc ; make the given radius the transverse distance between 0 and 0 on the secants ; then will the transverse distance of 20 ° and 20 ° , or 4thly . If the radius and any line representing a 70 ° and 70 ° , give the secant ...
... secant of any arc ; make the given radius the transverse distance between 0 and 0 on the secants ; then will the transverse distance of 20 ° and 20 ° , or 4thly . If the radius and any line representing a 70 ° and 70 ° , give the secant ...
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Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
anchor angle apparent altitude azimuth calculated Cape centre chronometer circle column compass Corr corresponding Cosec cosine courses sailed degrees Diff difference of latitude difference of longitude Dist draw elapsed equal equator error EXAMPLE feet finding the latitude fore observation Funchal given Greenwich half-sum horizon glass horizontal parallax hour angle hypotenuse instrument latitude and departure line of numbers line of sines logarithm mean meridian altitude method middle latitude miles minutes moon moon's multiplied Nautical Almanac nearly noon object observed altitude obtained parallax parallel Parallel Sailing passing the meridian perpendicular Plane Sailing polar distance pole quadrant radius 90 refraction right ascension rule sea account secant semidiameter sextant ship ship's side star subtract sun's declination sun's lower limb Suppose taken tangent telescope traverse table triangle true altitude true amplitude true distance variation wind wires zenith distance