Lietotāju komentāri - Rakstīt atsauksmi
Ierastajās vietās neesam atraduši nevienu atsauksmi.
Citi izdevumi - Skatīt visu
abstract according addition algebra angle appear applied approximation argument body called chapter circle complete conception conic sections connection consider continuous coordinates correlation corresponding course curve defined definition determine direction easy equal equation example exist explained fact figure force fractions function fundamental geometry given gives Greek Hence ideas imaginary important increase interest interpretation interval length less limit magnitude mathe mathematical mathematicians matical meaning measure merely method mind motion moving namely nature negative operations ordered couple origin particular period physical plane positive possible practical properties proved quantity relation represents result satisfied sense side simple space square standard straight line suppose symbols theory things thought tion triangle true unit variable vector whole zero
41. lappuse - By relieving the brain of all unnecessary work, a good notation sets it free to concentrate on more advanced problems, and in effect increases the mental power of the race.
199. lappuse - Hark! the rushing snow! The sun-awakened avalanche! whose mass, Thrice sifted by the storm, had gathered there Flake after flake, in heaven-defying minds As thought by thought is piled, till some great truth Is loosened, and the nations echo round, Shaken to their roots, as do the mountains now.
43. lappuse - It is a profoundly erroneous truism, repeated by all copy-books and by eminent people when they are making speeches, that we should cultivate the habit of thinking ^ what we are doing. The precise opposite is the case. Civilization advances by extending the number of important operations which we can perform without thinking about them.
25. lappuse - Every body continues in its state of rest or of uniform motion in a straight line, except in so far as it may be compelled by impressed forces to change that state.
121. lappuse - Newton's law of gravitation states that any two bodies attract each other with a force proportional to the product of their masses and inversely proportional to the square of the distance between them...
15. lappuse - There is no more common error than to assume that, because prolonged and accurate mathematical calculations have been made, the application of the result to some fact of nature is absolutely certain'.
41. lappuse - Before the introduction of the Arabic notation, multiplication was difficult, and the division even of integers called into play the highest mathematical faculties. Probably nothing in the modern world would have more astonished a Greek mathematician than to learn that, under the influence of compulsory education...
139. lappuse - Now in creative thought common sense is a bad master. Its sole criterion for judgment is that the new ideas shall look like the old ones, in other words it can only act by suppressing originality.
205. lappuse - It is a well-founded historical generalization that the last thing to be discovered in any science is what the science is really about. Men go on groping for centuries, guided merely by a dim instinct and a puzzled curiosity, till at last 'Some great truth is loosened.