Sine calculation output inconcistency

[nenad.miksa]

Hello!

When issuing

Code : Tout sélectionner

sin(pi/7)

into icas commandline, the output is

Code : Tout sélectionner

sin(pi/7)

However, when issuing

Code : Tout sélectionner

sin(pi/6.99)

the output is

Code : Tout sélectionner

0.434462124442

Why is the output not consistent (either decimal result or same as input in both cases)? Can this be made consistent?

[parisse]

It is consistent. For sin(pi/7) the input is exact, therefore the answer is exact, while for sin(pi/6.99) the input is approx. If you want an approx answer for the first input, enter sin(pi/7.0) instead.