Fettis, Henry E. Complex roots of \(\sin z=az\), \(\cos z=az\), and \(\cosh z=az\). (English) Zbl 0332.65031 Math. Comput. 30, 541-545 (1976). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 3 Documents MSC: 65H05 Numerical computation of solutions to single equations 65A05 Tables in numerical analysis 33B10 Exponential and trigonometric functions PDFBibTeX XMLCite \textit{H. E. Fettis}, Math. Comput. 30, 541--545 (1976; Zbl 0332.65031) Full Text: DOI Digital Library of Mathematical Functions: §4.46 Tables ‣ Computation ‣ Chapter 4 Elementary Functions Online Encyclopedia of Integer Sequences: Decimal expansion of the real part of the complex root of cos(x + i*y) = x + i*y with least x > 0 and y > 0. Decimal expansion of the imaginary part of the complex root of cos(x + i*y) = x + i*y with least x > 0 and y > 0.