The Complete Mathematical and General Navigation Tables: Including Every Table Required with the Nautical Almanc in Finding the Latitude and Longitude: with an Explanation of Their Construction, Use, and Application to Navigation and Nautical Astronomy, Trigonometry, Dialling, Gunnery, EtcSimpkin, Marshall, & Company, 1838 |
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Resultat 1-5 av 99
Side x
... less advantage to the French navigator , in enabling him readily to consult the works of the English astronomers , where the degrees , & c . , are ex- pressed agreeably to the original or sexagesimal principle . Table LVII . is new ...
... less advantage to the French navigator , in enabling him readily to consult the works of the English astronomers , where the degrees , & c . , are ex- pressed agreeably to the original or sexagesimal principle . Table LVII . is new ...
Side xiii
... less troublesome than that by double altitudes which immediately precedes it . - Problems IX . , X. , XI . , and XII . , contain new and accurate methods of deducing the latitude from the altitudes of the celestial bodies observed at ...
... less troublesome than that by double altitudes which immediately precedes it . - Problems IX . , X. , XI . , and XII . , contain new and accurate methods of deducing the latitude from the altitudes of the celestial bodies observed at ...
Side 11
... less than the horizontal semi- diameter given in the Nautical Almanac . Hence it is manifest that the semidiameter of a celestial object , measured in any other manner than that parallel to the plane of the horizon will be always less ...
... less than the horizontal semi- diameter given in the Nautical Almanac . Hence it is manifest that the semidiameter of a celestial object , measured in any other manner than that parallel to the plane of the horizon will be always less ...
Side 15
... less than the latter . - And , As 350 degrees increased by the observed height of Fahrenheit's ther- mometer , are to 400 degrees † , so is the mean refraction to the corrected refraction ; the difference between which , and the mean ...
... less than the latter . - And , As 350 degrees increased by the observed height of Fahrenheit's ther- mometer , are to 400 degrees † , so is the mean refraction to the corrected refraction ; the difference between which , and the mean ...
Side 19
... less than the truth in places distant from the equa- tor , the present Table has been computed ; which contains the number of minutes and seconds that the latitude , so deduced , will be less than what would result from actual ...
... less than the truth in places distant from the equa- tor , the present Table has been computed ; which contains the number of minutes and seconds that the latitude , so deduced , will be less than what would result from actual ...
Innhold
355 | |
361 | |
368 | |
374 | |
381 | |
385 | |
394 | |
405 | |
83 | |
102 | |
114 | |
116 | |
123 | |
147 | |
154 | |
179 | |
193 | |
202 | |
209 | |
215 | |
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248 | |
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272 | |
285 | |
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305 | |
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349 | |
413 | |
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462 | |
515 | |
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531 | |
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570 | |
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601 | |
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640 | |
647 | |
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670 | |
680 | |
695 | |
701 | |
708 | |
720 | |
726 | |
732 | |
739 | |
745 | |
Vanlige uttrykk og setninger
90 degrees add the log angle of meeting answering approximate auxiliary angle celestial object co-secant co-sine co-tangent co-versed sine comp computed Constant log Corr correction course and distance decimal fraction departure Diff difference of latitude difference of longitude distance sailed earth equal equator Example find the Angle find the Difference fixed star given angle Given arch given log given side hence hypothenuse A C leg AC mean solar merid meridian meridional difference middle latitude miles minutes moon's apparent altitude moon's horizontal parallax multiplied natural number natural sine natural versed sine Nautical Almanac noon observation perpendicular B C plane PROBLEM prop proportional log quadrant radius reduced refraction right angled right ascension right-hand rising and setting secant semidiameter ship side A B side BC sidereal day spherical distance spherical triangle star's subtracted Table tabular tangent trigonometry true altitude tude versed sine supplement
Populære avsnitt
Side 59 - Also, between the mean, thus found, .and the nearest extreme, find another geometrical mean, in the same manner ; and so on, till you are arrived within the proposed limit of the number whose logarithm is sought.
Side 206 - For the purpose of measuring angles, the circumference is divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; each minute into 60 equal parts called seconds.
Side 258 - If two triangles have two angles of the one equal to two angles...
Side 59 - ... progression, to which those indices belong. Thus, the indices 2 and 3, being added together, make 5 ; and the numbers 4 and 8, or the terms corresponding to those indices, being multiplied together, make 32, which is the number answering to the index 5.
Side 59 - And, if the logarithm of any number be divided by the index of its root, the quotient will be equal to the logarithm of that root. Thus the index or logarithm of 64 is 6 ; and, if this number be divided by 2, the quotient will be = 3, which is the logarithm of 8, or the square root of 64.
Side 152 - RULE. Divide as in whole numbers, and from the right hand of the quotient point off as many places for decimals as the decimal places in the dividend exceed those in the divisor.
Side 153 - When there happens to be a remainder after the division ; or when the decimal places in the divisor are more than those in the dividend ; then ciphers may be annexed to the dividend, and the quotient carried on as far as required.
Side 154 - REDUCTION OF DECIMALS. CASE I. . To reduce a Vulgar Fraction to a Decimal Fraction of equal value.
Side 177 - II. The sine of the middle part is equal to the product of the cosines of the opposite parts.
Side 243 - II. the difference of latitude and departure corresponding to each course and distance, and set them in their respective columns : then the difference between the sums of the northings and southings will be the difference of latitude made good, of the same name with the greater ; and the difference between the sums of the eastings and westings will be the departure made good, of the same name with the greater quantity.