error using zeros in matlab

er = zeros(1, .125*N); % eigth rest
qr = zeros(1, .25*N); % quarter rest
hr = zeros(1, .5*N); % half rest
tr = zeros(1, .75*N); % three-quarter rest
wr = zeros(1, N); % whole rest

Error using zeros
Size inputs must be integers.

Error in pleasework (line 49)
er = zeros(1, .125*N); % eigth rest

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Answer 1

[Image Analyst]

.125*N is not an exact integer. Try round(0.125 * N) instead.