XTick   XTickLabel   text   TeX  Matlab  特殊符號

我的電腦已經裝過CTeX了，不知道沒有裝CTeX的電腦能否正確執行這個程式

MATLAB畫出來的函式影象座標軸預設為數字，想要改變座標軸標註的間隔，且標註為特殊符號

clear all;clc;
sigma = 1;
xmax = 4*sigma;
x = -xmax:0.1:xmax;

y = gaussmf(x,[sigma 0])+0.05; % y = gaussmf(x,[sig c])

x1 = -3:3;
y1 = gaussmf(x1,[sigma 0])+0.05;

plot(x,y,'linewidth',2.5);

set(gca,'XTick',-4:4);
axis([-1.1*xmax 1.1*xmax 0 1.1*max(y)]);
%%
ticks={'-4\sigma' '-3\sigma' '-2\sigma'  '-1\sigma'  '0'  '+1\sigma' '+2\sigma' '+3\sigma'  '+4\sigma'};
%%
n = length(ticks);
tkx = get(gca,'XTick');

w = linspace(tkx(1),tkx(end),n);
set(gca, 'XTick', w, 'XTickLabel', []);%重新整理刻度，去掉刻度值

for i=1:n
    text('Interpreter','tex','String',ticks(i),'Position',[w(i),-0.03],'horizontalAlignment', 'center');
end  % w(i)後面這個數字不能太大或太小，不然的話超過了figure的顯示範圍
%%
number = {'0.13%','2.14%','13.59%','34.13%','34.13%','13.59%','2.14%','0.13%'};
%%
w_number = linspace(-3.5,3.5,8);
for i=1:(n-1)
    text('Interpreter','tex','String',number(i),'Position',[w_number(i),0.18],'horizontalAlignment', 'center');
end
%%

hold on;
% plot([-3 x1(1)],[0 y1(1)]);
for i = 1:length(x1)
    plot([x1(i) x1(i)],[0 y1(i)]);
    hold on;
end