assertEquals(TH.eval(a, 1, 1), 0.785398163397448);
assertEquals(TH.eval(a, -1, -1), -2.35619449019234);
}
public void testATANH() throws Exception {
ATANH a = new ATANH();
assertEquals(TH.eval(a, 0.76159416), 1.00000000962971);
assertEquals(TH.eval(a, -0.1), -0.10033534773);
}