user defined variable input

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Anik SARKER
Anik SARKER 2018-3-5
评论： Anik SARKER 2018-3-5
If i have sample formula k=aX1*aX2*aX3*......*aXn. here X1,X2,...Xn are vector of X=[X1 X2 ... Xn]... if user input has only 2 component X1,X2 the output will be k=aX1*aX2. if user has n component in the vector then the output will be k=aX1*aX2*aX3*......*aXn. how to solve such a case

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ES
ES 2018-3-5
Get the user input of X using input function. Then get the length of X using length function.
Run a for loop on length of X and multiply with 'a'.
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Stephen23
Stephen23 2018-3-5
Note that it is recommended to avoid length, and only use numel or size. This avoids bugs caused by length measuring different dimensions without warning.

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