Upload New File

창의소프트웨어입문 11/12.04#1.py

+Python 3.7.0 (v3.7.0:1bf9cc5093, Jun 27 2018, 04:59:51) [MSC v.1914 64 bit (AMD64)] on win32
+Type "copyright", "credits" or "license()" for more information.
+>>> a = 100
+>>> def local_test()
+SyntaxError: invalid syntax
+>>> def local_test
+SyntaxError: invalid syntax
+>>> def local_test():
+	a = 1
+	print(a)
+
+	
+>>> a
+100
+>>> local_test()
+1
+>>> a
+100
+>>> def local_test():
+	global a = 1
+	
+SyntaxError: invalid syntax
+>>> def local_test():
+	global a
+	a = 1
+	print(a)
+
+	
+>>> a
+100
+>>> local_test()
+1
+>>> a
+1
+>>> def fac(n):
+	if n == 0 :
+		return 1
+	if n > 0;
+	
+SyntaxError: invalid syntax
+>>> def fac(n):
+	if n == 0 :
+		return 1
+	if n > 0 :
+		return fac(n-1) * n
+
+	
+>>> fac(5)
+120
+>>> fac(100)
+93326215443944152681699238856266700490715968264381621468592963895217599993229915608941463976156518286253697920827223758251185210916864000000000000000000000000
+>>> fac(5000)
+Traceback (most recent call last):
+  File "<pyshell#32>", line 1, in <module>
+    fac(5000)
+  File "<pyshell#29>", line 5, in fac
+    return fac(n-1) * n
+  File "<pyshell#29>", line 5, in fac
+    return fac(n-1) * n
+  File "<pyshell#29>", line 5, in fac
+    return fac(n-1) * n
+  [Previous line repeated 989 more times]
+  File "<pyshell#29>", line 2, in fac
+    if n == 0 :
+RecursionError: maximum recursion depth exceeded in comparison
+>>> fac(200)
+788657867364790503552363213932185062295135977687173263294742533244359449963403342920304284011984623904177212138919638830257642790242637105061926624952829931113462857270763317237396988943922445621451664240254033291864131227428294853277524242407573903240321257405579568660226031904170324062351700858796178922222789623703897374720000000000000000000000000000000000000000000000000
+>>> def hello_korean():
+        print('안녕하세요.')
+
+>>> def hello_english():
+        print('Hello.')
+
+>>> def greet(hello): 
+        hello()
+
+>>> greet(hello_korean)
+안녕하세요.
+>>> greet(hello_english)
+
+Hello.
+>>> def fac(n=0):
+	s = 1
+	if n == 0:
+		return 1
+	if n > 0:
+		s = s * n
+		print(s)
+		return fac(n-1) * n
+
+	
+>>> fac(10)
+10
+9
+8
+7
+6
+5
+4
+3
+2
+1
+3628800
+>>> import math
+
+>>> def stddev(*args):
+	def mean():
+		return sum(args)/len(args)
+	def variance(m):
+		total = 0
+		for arg in args:
+			total += (arg - m ) ** 2
+		return total/(len(args)-1)
+	v = variance(mean())
+	return math.sqrt(v)
+
+>>> stddev(1,2,3)
+1.0
+>>> def mean():
+		return sum(args)/len(args)
+
+>>> def mean():
+		return sum(args)/len(args)
+def variance(m):
+		total = 0
+		for arg in args:
+			total += (arg - m ) ** 2
+		return total/(len(args)-1)def stddev(*args):
+			
+SyntaxError: invalid syntax
+>>> def mean(*args):
+		return sum(args)/len(args)
+def variance(*args):
+		total = 0
+		m = mean(args)
+		for arg in args:
+			total += (arg - m ) ** 2
+		return total/(len(args)-1)
+	
+SyntaxError: invalid syntax
+>>> def stddev2(*args):
+	def mean():
+		return sum(args)/len(args)
+	def variance(m):
+		total = 0
+		for arg in args:
+			total += (arg - m ) ** 2
+		return total/(len(args)-1)
+	v = variance(mean())
+	return math.sqrt(v)
+
+>>> def mean(*args):
+	print(args)
+	return sum(args)/len(args)
+
+>>> mean(10, 20)
+(10, 20)
+15.0
+>>> stddev(1,2,3)
+1.0
+>>> stddev2(1,2,3)
+1.0
+>>>