Release calc version 2.10.2t30

help/asinh

@@ -0,0 +1,32 @@
+NAME
+    asinh - inverse hyperbolic sine
+
+SYNOPSIS
+    asinh(x [,eps])
+
+TYPES
+    x		real
+    eps		nonzero real, defaults to epsilon()
+
+    return	real
+
+DESCRIPTION
+    Returns the asinh of x to a multiple of eps with error less in
+    absolute value than .75 * eps.
+
+    asinh(x) = ln(x + sqrt(1 + x^2)) is the real number v for which
+    sinh(v) = x.
+
+EXAMPLE
+    > print asinh(2, 1e-5), asinh(2, 1e-10), asinh(2, 1e-15), asinh(2, 1e-20)
+    1.44363 1.4436354752 1.44363547517881 1.44363547517881034249
+
+LIMITS
+    unlike sin and cos, x must be real
+    eps > 0
+
+LIBRARY
+    NUMBER *qasinh(NUMBER *x, NUMBER *eps)
+
+SEE ALSO
+    acosh, atanh, asech, acsch, acoth, epsilon