NavigationMacmillan, 1917 - 330 páginas |
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Términos y frases comunes
astronomic azimuth b₂ Barnegat Barnegat Light bow bearing calculation called chart chronometer circle comp'd compass course compass error computed altitude Corr'd corresponding Cot Sec Csc Cot Tan Csc course angle Csc Sec D. R. lat D. R. latitude D. R. longitude D. R. pt dead reckoning decimal declination departure deviation table diff dist equation example FORE formula gives Greenwich apparent Greenwich mean index correction index error interpolation intersection K Q K Q latitude and longitude latitude difference logarithms longitude difference magnetic course mean sun Mercator meridians middle latitude miles mirror Nautical Almanac navigator noon-sight Obs'd observed altitude obtained pair of arguments problem right ascension Sandy Hook sextant sextant observation ship ship's apparent ship's course ship's position Sin Cot Tan steered Sumner line Sumner method Sumner point Table 13 Tan Cot Sec telescope time-sight tion traverse table true course vernier watch whole number yacht
Pasajes populares
Página 30 - Bee that to divide one number by another, we subtract the log. of the divisor from the log. of the dividend, and the remainder is the log.
Página 24 - The power of 10, for a number greater than 1, is positive and is one less than the number of digits before the decimal point in the original number.
Página 30 - Recall that a fundamental property of logarithms is that the log of a product is equal to the sum of the logs, ie, log(xy) = log x + log y.