\(sinh\,0.75\approx 0.82232\) |
Set hairline to 0.75 on \(G_\theta\), read 0.822 on T.
| |

\(tanh\,0.75\approx 0.63515\) |
Set hairline to 0.75 on \(G_\theta\), read 0.635 on T.
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\(cosh\,0.75\approx 1.29468\) |
Set hairline to 0.75 on \(G_\theta\), set left index of D under hairline,
read \(sech\,0.75=0.772\) opposite right index of P,
set hairline to 0.772 on CI, read 1.295 on C.
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or |
Set hairline to 0.75 on \(G_\theta\), read \(sinh\,0.75=0.822\) on T,
Move 0.822 on Q, read 1.2945 on Q′.
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\(cosh\,1.75\approx 2.96419\) |
Set hairline to 0.75 on \(G_\theta\), set right index of D under hairline,
read \(sech\,1.75=0.337\) opposite left index of P,
set hairline to 0.337 on CI, read 2.97 on C.
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Since \(sinh\,1.75\gt 1\), the second method cannot be used. |

Because the results of the trig and hyperbolic functions do not occur on the logarithmic (C/D) scales, it is not convenient to compute hyperbolic functions of complex values using this rule; to do so requires multiplying trig functions with hyperbolic functions.

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