user defined variable input

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

Answer 1

[ES]

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'.

[Stephen23]

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.

[Anik SARKER]

thank you