How do get sin-1 on web2.0 calc?

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Maybe I'm just blind, but what key do I press?

Guest Apr 9, 2013

admin · Answer 1 · 2013-04-10T04:17:45

"long"-press on button "sin", or "2nd" then "asin".

[input]asin(0.5)[/input]
[input]arcsin(0.5)[/input]
[input]sin^-1(0.5)[/input]