ISSN:0039-6265    

DOI:10.1179/sre.1975.23.176.48

出版商:Taylor&Francis    

年代:1975

数据来源: Taylor

ISSN:0039-6265    

DOI:10.1179/sre.1975.23.176.50

出版商:Taylor&Francis    

年代:1975

数据来源: Taylor

摘要:

AbstractThis paper gives a resuméof the theory of anallactic imaging, and near anallactic imaging, and in the process stresses the point that to have internal focusing, as modern instruments do, results in a slight departure from the exact anallactic situation.

ISSN:0039-6265    

DOI:10.1179/sre.1975.23.176.51

出版商:Taylor&Francis    

年代:1975

数据来源: Taylor

摘要:

AbstractSeveral methods by which trigonometric and other functions can be evaluated are described in detail. Particular emphasis is placed on the methods that are used in the design of hard wired functions for desk and pocket calculators. All the necessary formulae and coefficients for the evaluations are given together with worked examples.

ISSN:0039-6265    

DOI:10.1179/sre.1975.23.176.59

出版商:Taylor&Francis    

年代:1975

数据来源: Taylor

摘要:

AbstractThe opposite page carries a specimen of the Ordnance Survey map at 1:50 000 scale, the first 103 sheets of which, covering all of Wales and England south of a Morecambe–Bridlington line were published in 1974. Of these 103 sheets, three—Nos. 115 (from which this extract has been taken), 176 and 177 were published from the outset in the Second Series style. The remaining 101 sheets will be published in 1976 and of these nearly 50 will be in the Second Series style initially.

ISSN:0039-6265    

DOI:10.1179/sre.1975.23.176.76

出版商:Taylor&Francis    

年代:1975

数据来源: Taylor

摘要:

AbstractThe scale factor and its logarithm, the meridian convergence, and the arc-to-chord correction for a conformal mapping projection are developed as Taylor expansions to the third order in the rectangular projection coordinates.

ISSN:0039-6265    

DOI:10.1179/sre.1975.23.176.79

出版商:Taylor&Francis    

年代:1975

数据来源: Taylor

摘要:

AbstractThis paper gives compact formulae for the direct and inverse solutions of geodesics of any length. Existing formulae have been recast for efficient programming to conserve space and reduce execution time. The main feature of the new formulae is the use of nested equations for elliptic terms. Both solutions are iterative.

ISSN:0039-6265    

DOI:10.1179/sre.1975.23.176.88

出版商:Taylor&Francis    

年代:1975

数据来源: Taylor

ISSN:0039-6265    

DOI:10.1179/sre.1975.23.176.94

出版商:Taylor&Francis    

年代:1975

数据来源: Taylor

ISSN:0039-6265    

DOI:10.1179/sre.1975.23.176.96

出版商:Taylor&Francis    

年代:1975

数据来源: Taylor

ISSN:0039-6265    

DOI:10.1179/sre.1975.23.176.i

出版商:Taylor&Francis    

年代:1975

数据来源: Taylor