General Mathematics, Βιβλίο 1

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Δημοφιλή αποσπάσματα

Σελίδα 418 - I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.
Σελίδα 208 - Divide the first term of the dividend by the first term of the divisor, and write the result as the first term of the quotient. Multiply the whole divisor by the first term of the quotient, and subtract the product from the dividend.
Σελίδα 340 - In general, the specific gravity of a substance is defined as the ratio of the weight of a given volume of the substance to the weight of an equal volume of water at 4° centigrade. What would it mean, therefore, to say that the specific gravity of 14-karat gold is 14.88 ? A cubic centimeter of distilled water at 4° centigrade weighs just 1 gm.
Σελίδα 418 - I don't know what I may seem to the world ; but as to myself, I seem to have been only like a boy playing on the seashore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of Truth lay all undiscovered before me.
Σελίδα 439 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.
Σελίδα 328 - If the product of two numbers -is equal to the product of two other numbers, either pair may be made the means, and the other pair the extremes, of a proportion.
Σελίδα 141 - The measure of an exterior angle of a triangle is equal to the sum of the measures of the two remote interior angles.
Σελίδα 148 - If two angles of one triangle are equal respectively to two angles of another triangle, the third angles are equal.
Σελίδα 92 - TJie square of the sum of two numbers equals the square of the first, plus twice the product of the first by the second, plus the square of the second.
Σελίδα 447 - My lord, I have undertaken this long journey purposely to see your person, and to know by what engine of wit or ingenuity you came first to think of this most excellent help into astronomy, viz. the logarithms ; but, my lord, being by you found out, I wonder nobody else found it out before, when now known it is so easy.

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