bclibrary

commit ab2c7ffbc718ec2714e40a344cbe38d2d9dfc1ed
parent 894de25beb628716e1b7abe4fc35ca0255289160
Author: Sebastiano Tronto <sebastiano@tronto.net>
Date:   Sat, 25 Mar 2023 09:48:33 +0100

Added root function

Diffstat:
M
bc.library
 | 
10
+++++++++-

1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/bc.library b/bc.library
@@ -5,7 +5,7 @@
  * The following functions are available (aliases in parentheses):
  * General utility: max, min, sgn, abs, floor, ceiling
  * Arithmetic: factorial(fact), binomial(binom, bin), gcd, lcm, totient(phi)
- * Calculus: exp, log(ln), pow, sin, cos, tan, cosh, sinh, tanh
+ * Calculus: exp, log(ln), pow, root, sin, cos, tan, cosh, sinh, tanh
  *           atan, atan2, asin, acos, atanh, asinh, acosh
  * Constants (as functions): e(), pi()
  *
@@ -187,6 +187,14 @@ define pow(a, b) {
 	return a ^ b
 }
 
+define root(a, b) {
+	auto res
+	scale += 5
+	res = pow(b, 1/a)
+	scale -= 5
+	return res / 1
+}
+
 define trig(x, ii, in, id) {
 	auto i, n, d, series
 	scale += 10