close;
clear;
clc;
x=1:0.1:5; y=exp(x/2);
figure
subplot(2,2,1)
plot(x,y), grid, title('linear','FontSize',17)
subplot(2,2,2)
semilogx(x,y), grid, title('semilogx','FontSize',17)
subplot(2,2,3)
semilogy(x,y), grid, title('semilogy','FontSize',17)
subplot(2,2,4)
loglog(x,y), grid, title('loglog','FontSize',17)

