?? todb.m
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function mag_db=todb(mag)% TODB: Function for decibel conversion %%%%%%%%%%%%%%%%%%%% todb.m %%%%%%%%%%%%%%%%%%%%%% Discrete-Time Control Problems using %% MATLAB and the Control System Toolbox %% by J.H. Chow, D.K. Frederick, & N.W. Chbat %% Brooks/Cole Publishing Company %% September 2002 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%mag_db=20*log10(mag);%%%%%%%%%?? 快捷鍵說明
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