How to get 2 angle values for an asin?
조회 수: 18 (최근 30일)
이전 댓글 표시
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
댓글 수: 0
채택된 답변
A Jenkins
2015년 1월 19일
>> syms x
>> solve('0.5 = sin(x)',x)
ans =
0.52359877559829887307710723054658
2.6179938779914943653855361527329
댓글 수: 3
A Jenkins
2015년 1월 19일
For real elements of x in the interval [-1,1], asin(x) returns values in the interval [-pi/2,pi/2]. For real elements of x outside the interval [-1,1] and for complex values of x, asin(x) returns complex values.
추가 답변 (0개)
참고 항목
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!