How to get 2 angle values for an asin?

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Joshua D'Agostino 2015-1-19

评论： Joshua D'Agostino ，2015-1-20

Hey guys, I'm trying to solve for 2 angles that have the same sine value.

i.e. if x = asin(0.5), then x could be 30 degrees or 150 degrees.

I can't get this to come out though.

tried declaring a 1x2 symbolic variable x: [x1,x2], but if I try:

S = solve('x = asin(0.5)',x)

Then what I get out is:

x = 0.52... (30 degrees)
x1 = 0
x2 = 0

Can anyone help me out here? What am I doing wrong?

Thanks,

Joshua

A Jenkins 2015-1-19

>> syms x
>> solve('0.5 = sin(x)',x)
ans =
   0.52359877559829887307710723054658
    2.6179938779914943653855361527329

Oh I see. Gotcha, cheers mate

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