4223.sagews

2+3

5

5+6*21/18-2*3

6

type(3)

<type 'sage.rings.integer.Integer'>

type(21)

<type 'sage.rings.integer.Integer'>

5-2

3

3*4

12

30/3

10

8%5

3

2^3

8

-3

-3

--3

3

5+6*21/18-2^3

4

5+6.21    
  ____ -2^3
   18

11.2100000000000

2+4*5

22

(2+4)*5

30

((2+4)*3)5

Traceback (most recent call last): File "<stdin>", line 1, in <module> File "_sage_input_29.py", line 10, in <module> exec compile(u'open("___code___.py","w").write("# -*- coding: utf-8 -*-\\n" + _support_.preparse_worksheet_cell(base64.b64decode("KCgyKzQpKjMpNQ=="),globals())+"\\n"); execfile(os.path.abspath("___code___.py"))' + '\n', '', 'single') File "", line 1, in <module> File "/tmp/tmpIEHe98/___code___.py", line 3 ((_sage_const_2 +_sage_const_4 )*_sage_const_3 )_sage_const_5 ^ SyntaxError: invalid syntax

box = 7

box

7

a = 2

b = 3

a + b

5

a = 4

type (a)

<type 'sage.rings.integer.Integer'>

a = 1

b = 2

c = 3

a
b
c

3

print a
print b
print c

1 2 3

a = 1
b = 2
c = 3*6
print a,b,c

1 2 18

a=1;b=2;c=3
print a,b,c

1 2 3

a = 1
b = 2
c = 3*6
a;b;c

1 2 18

a = "Hola,soy una secuencia."
print a
type(a)

Hola,soy una secuencia. <type 'str'>

#Esto es un comentario
x = 2 #Inicializa la variable x a 2
print x

2

"""
x = 3
print x

Traceback (most recent call last): File "<stdin>", line 1, in <module> File "_sage_input_53.py", line 10, in <module> exec compile(u'open("___code___.py","w").write("# -*- coding: utf-8 -*-\\n" + _support_.preparse_worksheet_cell(base64.b64decode("IiIiCnggPSAzCnByaW50IHg="),globals())+"\\n"); execfile(os.path.abspath("___code___.py"))' + '\n', '', 'single') File "", line 1, in <module> File "/tmp/tmpXcx9m1/___code___.py", line 6 ^ SyntaxError: EOF while scanning triple-quoted string literal

#Ejemplo 1.
x = 2
y = 3
print x, "==", y, ":", x == y
print x, "<>", y, ":", x <> y
print x, "!=", y, ":", x != y
print x, "<", y, ":", x < y
print x, "<=", y, ":", x <= y
print x, ">", y, ":", x > y
print x, ">=", y, ":", x >= y

2 == 3 : False 2 <> 3 : True 2 != 3 : True 2 < 3 : True 2 <= 3 : True 2 > 3 : False 2 >= 3 : False __SAGE__ KeyboardInterrupt __SAGE__

#€jemplo 2.
x = 2
y = 2
print x, "==", y, ":", x == y
print x, "<>", y, ":", x <> y
print x, "!=", y, ":", x != y
print x, "<", y, ":", x < y
print x, "<=", y, ":", x <= y
print x, ">", y, ":", x > y
print x, ">=", y, ":", x >= y

2 == 2 : True 2 <> 2 : False 2 != 2 : False 2 < 2 : False 2 <= 2 : True 2 > 2 : False 2 >= 2 : True

#Ejemplo 3.
x = 3
y = 2
print x, "==", y, ":", x == y
print x, "<>", y, ":", x <> y
print x, "!=", y, ":", x != y
print x, "<", y, ":", x < y
print x, "<=", y, ":", x <= y
print x, ">", y, ":", x > y
print x, ">=", y, ":", x >= y

3 == 2 : False 3 <> 2 : True 3 != 2 : True 3 < 2 : False 3 <= 2 : False 3 > 2 : True 3 >= 2 : True

x = 6 
print x > 5

if x > 5:    
        print x
        print "mayor"

print "fin del programa"

True 6 mayor fin del programa

x = 4
print x > 5

if x > 5:
        print x
        print "Mayor"

print "Fin del programa."

False Fin del programa.

a = 7
b = 9
print a < 5 and b < 10
print a > 5 and b > 10
print a < 5 and b > 10
print a > 5 and b < 10
if a > 5 and b < 10:
         print "Estas 2 expresiones son verdaderas."

False False False True Estas 2 expresiones son verdaderas.

a = 7
b = 9
print a < 5 or b < 10
print a > 5 or b > 10
print a > 5 or b < 10
print a < 5 or b > 10
if a < 5 or b < 10:
         print "Por lo menos una de estas expresiones es verdadera."

True True True False Por lo menos una de estas expresiones es verdadera.

a = 7
print a > 5
print not a > 5

True False

#Imprimir los enteros del 1 al 10.
x = 1 #Inicializar la variable de conteo a 1 fuera del lazo.
while x <= 10:
        print x
        x = x + 1 #Incrementar x en 1.

1 2 3 4 5 6 7 8 9 10

#Imprimir los enteros del 1 al 100.
x = 1
while x <= 100:
       print x,
       x = x + 1 #Incrementar x en 1.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100

#Imprimir los enteros impares del 1 al 99.
x = 1
while x <= 100:
       print x,
       x = x + 2 #Incrementar x en 2.

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 75 77 79 81 83 85 87 89 91 93 95 97 99

# Imprimir los enteros del 1 al 100 en orden inverso.
x = 100
while x >= 1:
       print x,
       x = x - 1 #Reducir a x en 1.

100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

#programa de ejemplo con lazo infinito.
x = 1
while x < 10:
respuesta = x + 1

Traceback (most recent call last): File "<stdin>", line 1, in <module> File "_sage_input_117.py", line 10, in <module> exec compile(u'open("___code___.py","w").write("# -*- coding: utf-8 -*-\\n" + _support_.preparse_worksheet_cell(base64.b64decode("I3Byb2dyYW1hIGRlIGVqZW1wbG8gY29uIGxhem8gaW5maW5pdG8uCnggPSAxCndoaWxlIHggPCAxMDoKcmVzcHVlc3RhID0geCArIDE="),globals())+"\\n"); execfile(os.path.abspath("___code___.py"))' + '\n', '', 'single') File "", line 1, in <module> File "/tmp/tmpBMo_Qq/___code___.py", line 5 exec compile(u'respuesta = x + _sage_const_1 ' + '\n', '', 'single') ^ IndentationError: expected an indented block