 
 
 
10.2.10  Transforming arcsin into arctan
The asin2atan command
transforms arc sines in an expression to arc tangents by
using the identity 
| arcsin(x)=arctan | ⎛ ⎜
 ⎜
 ⎜
 ⎜
 ⎝
 |  | ⎞ ⎟
 ⎟
 ⎟
 ⎟
 ⎠
 | . | 
- 
asin2atan takes
expr, an expression containing inverse trigonometric functions.
- asin2atan(expr) returns
expr with all instances of asin replaced according to the above formula.
Example
|  | | | arctan | ⎛ ⎜
 ⎜
 ⎜
 ⎜
 ⎝
 |  | ⎞ ⎟
 ⎟
 ⎟
 ⎟
 ⎠
 | 
 |  |  |  |  |  |  |  |  |  |  | 
 | 
 
 
