Modern Instruments And Methods of Calculation, a Handbook of the Napier Tercentenary Exhibition
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In our eReader you can find the full English version of the book. Read Modern Instruments And Methods of Calculation, a Handbook of the Napier Tercentenary Exhibition Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Modern Instruments And Methods of Calculation, a Handbook of the Napier Tercentenary Exhibition
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34. — Early Type.
Fig. 35. — Modern Machine.
ease, and accuracy of operation in the modern machine. Notable among these improvements is the duplex feature introduced a few years ago. Prior to its invention only one key could be operated at a time. This meant that if a second key was struck before the one previously struck had returned to normal position an error might result ; but with the duplex machine there is no need for the exercise of care in this respect, as it provides for the simul- ta...neous operation of two or more keys in different columns. Besides simplify- ing the operation the duplex feature adds greatly to the speed and accuracy 100 SECTION D of the Comptometer. It facilitates calculations in multiplication and division in a remarkable degree, since as many keys as can be conveniently held by the fingers of both hands may be struck at the same time. Thus in multiplying, say, 47685 by 3457 it is only necessary to strike the keys representing the latter factor five times in the unit's position, eight times in the ten's position, six times in the hundred's position, and so on across, when the answer appears in the register.
What to read after Modern Instruments And Methods of Calculation, a Handbook of the Napier Tercentenary Exhibition?
You can find similar books in the "Read Also" column, or choose other free books by Horsburgh, E. M. (Ellice Martin) Ed to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
34. — Early Type.
Fig. 35. — Modern Machine.
ease, and accuracy of operation in the modern machine. Notable among these improvements is the duplex feature introduced a few years ago. Prior to its invention only one key could be operated at a time. This meant that if a second key was struck before the one previously struck had returned to normal position an error might result ; but with the duplex machine there is no need for the exercise of care in this respect, as it provides for the simul- ta...neous operation of two or more keys in different columns. Besides simplify- ing the operation the duplex feature adds greatly to the speed and accuracy 100 SECTION D of the Comptometer. It facilitates calculations in multiplication and division in a remarkable degree, since as many keys as can be conveniently held by the fingers of both hands may be struck at the same time. Thus in multiplying, say, 47685 by 3457 it is only necessary to strike the keys representing the latter factor five times in the unit's position, eight times in the ten's position, six times in the hundred's position, and so on across, when the answer appears in the register.
What to read after Modern Instruments And Methods of Calculation, a Handbook of the Napier Tercentenary Exhibition?
You can find similar books in the "Read Also" column, or choose other free books by Horsburgh, E. M. (Ellice Martin) Ed to read onlineMoreLess
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