Using the function symsum.
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I use symsum(k^2,k,0,4) in the command window but it brings back "undefined function or variable "k"". What else do I need to do?
回答（1 个）
Walter Roberson
2016-10-25
syms k
symsum(k^2,k,0,4)
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2016-10-25
2016-10-25
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