Description and Use of a Diagram of Navigation: By which All Problems in Plane, Traverse, Parallel, Middle Latitude and Mercator's Sailing May be Instantly and Accurately Resolved. Adapted to the Capacity of All who Know the Use of Figures. Designed as an Easy Introduction, by Sensible Demonstration, to the Principles, and the Practice of Navigation. With a Diagram EngravedFellowes & Simpson, 1822 - 4 σελίδες |
Αναζήτηση στο βιβλίο
Αποτελέσματα 1 - 4 από τα 4.
Σελίδα 26
... cosine of the latitude . 93. In order therefore to represent the true course between two places , the degrees of latitude are also artificially expanded , and in the ratio of the secant of the latitude to radius . 94. The parts ...
... cosine of the latitude . 93. In order therefore to represent the true course between two places , the degrees of latitude are also artificially expanded , and in the ratio of the secant of the latitude to radius . 94. The parts ...
Σελίδα 42
... cosine and versed sine are equal to radius . 173. The TANGENT of an arc or angle is a right line drawn perpendicularly from the extremity of the radi- us , which meets one extremity of the arc . The tan- gent is terminated by the secant ...
... cosine and versed sine are equal to radius . 173. The TANGENT of an arc or angle is a right line drawn perpendicularly from the extremity of the radi- us , which meets one extremity of the arc . The tan- gent is terminated by the secant ...
Σελίδα 44
... cosine of 29 deg . which being parallel to the side marked meridian its value is there given 87 , which is the length , or ratio of the co - sine of 29 deg . to the radius of 100. If the length of the radius be increased , or diminished ...
... cosine of 29 deg . which being parallel to the side marked meridian its value is there given 87 , which is the length , or ratio of the co - sine of 29 deg . to the radius of 100. If the length of the radius be increased , or diminished ...
Σελίδα 46
... the hyp . 217 be made radius , and set the index on 32 deg . it is seen that the leg 115 is the sine of its opposite angle 32 deg . and that the leg 184 is the cosine of the same angle . Then let the leg 184 be radius , and set 46.
... the hyp . 217 be made radius , and set the index on 32 deg . it is seen that the leg 115 is the sine of its opposite angle 32 deg . and that the leg 184 is the cosine of the same angle . Then let the leg 184 be radius , and set 46.
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
arc of latitude arc or angle chord circle circumference co-sine co-tangent contiguous angle course 3 points course 3 pts course 38 deg COURSE and DEPARTURE Course and Diff course and distance course sailed curve line departure 84 Diagram of Navigation difference of lati difference of latitude difference of longitude direct course dist DISTANCE and DEPARTURE distance sailed ence of longitude Example Example.-A ship sails find the COURSE find the DISTANCE give the course give the diff give the distance Given both LATITUDES Given-one LATITUDE index remaining index set index to meet meet the difference Mercator's sailing merid meridian distance meridional difference middle lat parallel sailing plane sailing proper diff radius be equal required the course right line drawn right-angled plane triangle Rule Rule.-Set the index secant Set the index ship in lat side as radius side marked equator tance tangent traverse table tude