a7.m

the file contain many matlab signal source code and many example .

t=-2*pi:0.01:2*pi;
trigname=input('Input trig function name:');
switch trigname
case 'sin'
    plot(t,sin(t))
case 'cos'
    plot(t,cos(t))
case 'tan'
    fplot('tan',2*pi*[-1 1 -2 2])
case 'cot'
    fplot('cot',2*pi*[-1 1 -2 2])
otherwise
    break
end