iSlideRule Scales - S| "S"
Scales |
|
| S |
The S scale is a scale of sines and cosines,
running from 5.7° to 90°. Select the degrees on this
scale and read the sine or cosine on the C/D. The
magnitude on the C/D scale will be from 0.1 to 1.0. Formula: S = sin X |
| Sh1 Sh2 |
The Sh1 and Sh2 scales
are used in electrical engineering calculations, and
calculate the hyperbolic sine function. Sh1
ranges from 0.1 to 0.89, while Sh2 ranges from
0.89 to 3.0. These scales are available for use on the
top or bottom rules. Formula: Shn = sinh X |
| SRT |
The SRT scale (formerly ST scale) extends the
S scale for smaller angles between 0.56° and 5.8°. The
values on this scale range from 0.01 to 0.1 read from the D
scale. In this range, sines and tangents are nearly
equal so this scale can be used for both. Formula: SRT = sin, tan X |
| Smann |
The Smann scale in iSlideRule is
another representation of the SRT scale, for small
angles. This scale ranges from 0.57° to 5.7°. Formula: Smann = sin, tan X |