The Slide Rule a Practical Manual
The Slide Rule a Practical Manual
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In our eReader you can find the full English version of the book. Read The Slide Rule a Practical Manual 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 The Slide Rule a Practical Manual
What reading level is The Slide Rule a Practical Manual book?
To quickly assess the difficulty of the text, read a short excerpt:
H. Index of T read 296, the required tangent.
The tangents of angles less than 40' are sensibly proportional to the angles themselves, and as they may therefore be considered as sines, their value is determined by the aid of the single, and double accent marks on the sine scale, as previously explained. The rules for the number of integers are the same as for the sines.
Multiplication and division of tangents may be quite readily effected.
Ex. — Tan. 21° 50' x 15 = 6.
Set l. H. Index of T to 15... on D, and under 21° 50' on T read 6 onD.
Ex. — Tan. 72° 40' x 117 = 375.
Set (90°-72° 40') = 17° 20' on T to 117 on D, and under r. Ii. Index of T read 375 on D.
Cosines of Angles. — The cosines of angles may be determined by placing the scale S with its indices coinciding with those of A, and when opposite (90-0) on S is read cos. B on A. If the result is read on the l. H. Scale of A, a cypher is to be prefixed to the value read ; while if it is read on the R. H. Scale of A, the value is read directly as a decimal.
What to read after The Slide Rule a Practical Manual?
You can find similar books in the "Read Also" column, or choose other free books by Charles N Pickworth to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
H. Index of T read 296, the required tangent.
The tangents of angles less than 40' are sensibly proportional to the angles themselves, and as they may therefore be considered as sines, their value is determined by the aid of the single, and double accent marks on the sine scale, as previously explained. The rules for the number of integers are the same as for the sines.
Multiplication and division of tangents may be quite readily effected.
Ex. — Tan. 21° 50' x 15 = 6.
Set l. H. Index of T to 15... on D, and under 21° 50' on T read 6 onD.
Ex. — Tan. 72° 40' x 117 = 375.
Set (90°-72° 40') = 17° 20' on T to 117 on D, and under r. Ii. Index of T read 375 on D.
Cosines of Angles. — The cosines of angles may be determined by placing the scale S with its indices coinciding with those of A, and when opposite (90-0) on S is read cos. B on A. If the result is read on the l. H. Scale of A, a cypher is to be prefixed to the value read ; while if it is read on the R. H. Scale of A, the value is read directly as a decimal.
What to read after The Slide Rule a Practical Manual?
You can find similar books in the "Read Also" column, or choose other free books by Charles N Pickworth to read onlineMoreLess
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