Re: solve sinus



tommy.hi...@xxxxxxxxx schrieb:
On Mar 22, 12:41 pm, Kaba <n...@xxxxxxxx> wrote:
Anyway, here is my conversion (which is not working).

x = 2R * arcsin(s/2R)

Hi Sam,

This is incorrect, try again:)

After solving for x, check that it satisfies the original equation.

--http://kaba.hilvi.org

Try this:

s = R*sin((360/x)*0.5)

s/R = sin((360/x)*0.5)

arcsin(s/R) = (360/x)*0.5

arcsin(s/R)/(360*0.5) = 1/x

(360*0.5)/arcsin(s/R) = x

- T

Mathematically correct, but perhaps the OP's
question should have been:
How can I invert the function s(x) for x(s) ,
where x is given in degrees ?

s = R*sin(x/180)

sin((360/x)*0.5) doesn't make much sense
(but of course - defining a function is up to
anybody, and writing 360*0.5 is just the same
as 180).

Best regards --Gernot Hoffmann
.

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