Can anyone tell me the error with sum function?
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r=0.5;
n=0:10;
x=r.^n
s=sum(x)
What's the error with s?
3 Commenti
Alex Mcaulley
il 11 Dic 2019
What is wrong? It is the summation of a geometric progression and the result seems ok:
%Your code
r=0.5;
n=0:10;
x=r.^n
s=sum(x)
%General formula
s2 = x(1) + r*(x(end)-1)/(r-1)
s =
1.9990
s2 =
1.9990
Risposte (1)
Steven Lord
il 11 Dic 2019
Based on prior experience, I suspect you received the error "Array indices must be positive integers or logical values." If that's the case, clear the variable you've created named sum which is preventing you from calling the built-in sum function.
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