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2sin a. c. log adjacent angle opposite angle or arc angled spherical triangle base column comp complement cosec cosine cosx cosy cotangent cotx decimal diameter Diff Divide equal example figures Find the angles find the area Find the logarithm Find the number formula Given two sides hence hypotenuse included angle latitude less than 180 log cot log sin log tan Logarithmic Functions mantissa measuring arc Multiply N.sine Napier's Analogies number whose logarithm observe passing primitive circle Prob project and solve project the triangle proposition quadrant right angled spherical right angled triangle secant side opposite similar triangles sin x sine sines and cosines solution solve the triangle species spherical excess Spherical Trigonometry student subtract sun's declination TABLE OF LOGARITHMS tana tang tangent trigonometrical functions values versed-sine versin whence
Side 54 - ... subject of Geography of any yet published. It is simple and comprehensive, and embraces just what the child should be taught, and nothing more. It also embraces the general principles of Physical Geography so far as they can be taught to advantage in Common Schools. For those desiring to pursue the study of Physical Geography, we have prepared Cotton's Physical Geography.
Side 64 - What was the perpendicular height of a balloon, when its angles of elevation were 35° and 64°, as taken by two observers on the same level, at the same time, both on the same side of it, and in the same vertical plane ; the distance between the two observers being 880 yards ? Ans., 935.757 yards.
Side 55 - The universal favor with which these books have been received by educators in all parts of the country, leads the publishers to think that they have supplied a felt want in our educational appliances. There is one feature which characterizes this series, so unique, and yet so eminently practical, that we feel desirous of calling special attention to it. It is The facility with which the books can be used for classes of all grades, and in schools of the widest diversity of purpose.
Side 54 - It meets the exact wants of our Grammar Schools. The Review is unsurpassed in its tendency to make thorough and reliable scholars. I have learned more Geography that is practical and available during the short time we have used this work, than in all my life before, including ten years teaching by Mitchell's plan.—AB HETWOOD, Prin.
Side 96 - In a spherical triangle the cosine of any side is equal to the product of the cosines of the other two sides plus the product of the sines of these two sides and the cosine of their included angle.