A-M baby

Task/Function-composition/Groovy/function-composition-2.groovy

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+def sq = { it * it }
+def plus1 = { it + 1 }
+def minus1 = { it - 1 }
+
+def plus1sqd = compose(sq,plus1)
+def sqminus1 = compose(minus1,sq)
+def identity = compose(plus1,minus1)
+def plus1sqdminus1 = compose(minus1,compose(sq,plus1))
+def identity2 = compose(Math.&sin,Math.&asin)
+
+println "(x+1)**2 = (0+1)**2 = " + plus1sqd(0)
+println "x**2-1 = 20**2-1 = " + sqminus1(20)
+println "(x+1)-1 = (12+1)-1 = " + identity(12)
+println "(x+1)**2-1 = (3+1)**2-1 = " + plus1sqdminus1(3)
+println "sin(asin(x)) = sin(asin(1)) = " + identity2(1)