The Common Sense of the Exact SciencesD. Appleton, 1891 - 271 σελίδες |
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Σελίδα 34
... which of them comes first . If the two steps are taken in the same direction this is clear enough . + 3 + 4 , meaning step forward 3 and then step forward 4 , directs us to step forward 34 THE COMMON SENSE OF THE EXACT SCIENCES . Steps.
... which of them comes first . If the two steps are taken in the same direction this is clear enough . + 3 + 4 , meaning step forward 3 and then step forward 4 , directs us to step forward 34 THE COMMON SENSE OF THE EXACT SCIENCES . Steps.
Σελίδα 35
... directions , as , for example , 3-7 , we have to step forward 3 and then backward 7 , and the result is that we must ... direction of the greater of the two steps , and is in magnitude equal to their difference . We thus see that when ...
... directions , as , for example , 3-7 , we have to step forward 3 and then backward 7 , and the result is that we must ... direction of the greater of the two steps , and is in magnitude equal to their difference . We thus see that when ...
Σελίδα 36
... direction which it originally had , or it reverses it . If to make things symmetrical we insert the letter k when a step is kept in its original direction , we may write the equation k2 ( −3 ) = -6 to express the operation of simply ...
... direction which it originally had , or it reverses it . If to make things symmetrical we insert the letter k when a step is kept in its original direction , we may write the equation k2 ( −3 ) = -6 to express the operation of simply ...
Σελίδα 37
... direction unchanged . This may be written r2 ( r3 ) = k.6 . If we compare the last two formula with those which we previously obtained , viz . k2 ( −3 ) = −6 and r2 ( -3 ) = +6 , we shall see that the two sets are alike , except that ...
... direction unchanged . This may be written r2 ( r3 ) = k.6 . If we compare the last two formula with those which we previously obtained , viz . k2 ( −3 ) = −6 and r2 ( -3 ) = +6 , we shall see that the two sets are alike , except that ...
Σελίδα 41
... direction ( viz . the forward direction ) as the original step was to be taken . Similarly , if I want to multiply it by -7 , this means that I must take 7 steps of five numbers each in the opposite or backward direc- tion . Then ...
... direction ( viz . the forward direction ) as the original step was to be taken . Similarly , if I want to multiply it by -7 , this means that I must take 7 steps of five numbers each in the opposite or backward direc- tion . Then ...
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
A B C Archimedes arrangements body centre circle circumference clockwise coincide commutative law complex number Conon of Samos consider containing convert cose count counter-clockwise cube curve cylinder denoted determine directed step distance divide dots edge ellipse equiangular spiral expressed exterior angle figure five times six four fourth proportional fraction geometrical grow at logarithmic Hence hyperbola lemniscate length letters logarithmic rate logarithmic spiral loop magnitude means measure motion move Natural logarithms operation parabola parallel parallelogram perpendicular plane position quantity quaternion radius ratio rectangle represent result reverse right angles right six-face round scalar shadow shape side smooth-points space sphere spiral square step A P step backwards step forwards straight line stretch surface symbol tangent termed theorem tion triangle turn unit angle unity vector steps velocity
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