Trigonometry with calculators - Hestenes, Marshall D.; Hill, Richard O. (Englewood Cliffs, N.J. : Prentice-Hall, 1982)
"Portions of this book were adapted from material previously published in Algebra and trigonometry with calculators by Marshall D. Hestenes and Richard O. Hill, Jr."--Verso t.p.
Includes index.
Keywords: Trigonometry -- Data processing; Calculators