实验一
1.
(1)
z1=2*sin(85*pi/180)/(1+exp(2))
(2)
>> x=[2,1+2i;-0.45,5];
>> z2=(1/2)*log(x+sqrt(1+x*x))
(3)
>> a=-3.0:0.1:3.0;
>> z3=((exp(0.3*a)-exp(-0.3*a))/2).*sin(a+0.3)+log((0.3+a)/2)
(4)
t=0:0.5:2.5;
>> z4=(t.*t).*(t>=0&t<1)+(t.*t-1).*(t>=1&t<2)+(t.*t-2.*t+1).*(t>=2&t<3)
2.
(1)
>> A=[12,34,-4;34,7,87;3,65,7];
>> B=[1,3,-1;2,0,3;3,-2,7];