Evaluate whatever rsolve returns. Recurrence relations

asked 2016-04-05 19:32:34 +0200

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sage: from sympy import *
sage: x = Function('x') 
sage: n = var('n')
sage: q = rsolve(x(n+1)-(1+(3/(100)))*x(n),x(n),{x(0):10000})
sage: q
10000*(103/100)**n

I want to evaluate the result , say q(5) , but i get the following: ''TypeError: 'Mul' object is not callable''. Can someone help me

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answered 2016-04-06 02:57:36 +0200

tmonteil
27323 ●31 ●202 ●514 http://wiki.sagemath.o...

You should user the subs method to substitute n by 5 in your symbolic expression:

sage: q.subs(n,5)
11592740743/1000000

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Thank you!

brayn92298 ( 2016-04-06 18:27:42 +0200 )edit

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Asked: 2016-04-05 19:32:34 +0200

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Last updated: Apr 08 '16

Evaluate whatever rsolve returns. Recurrence relations edit

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