瀹為獙鍥?/p>
鍩烘湰缁樺浘缁冧範
涓�锛庡疄楠岀洰鐨勫拰瑕佹眰
1
锛庣啛鎮?/p>
Matlab
寮哄ぇ鐨勫浘褰㈠鐞嗗姛鑳斤紱
2
锛庢帉鎻″簲鐢?/p>
Matlab
瀹炵幇浜岀淮鍥惧舰鍜屼笁缁村浘褰㈢殑缁樺埗鍜屾帶鍒朵笌琛ㄧ幇鏂规硶銆?/p>
浜岋紟瀹為獙鍣ㄦ潗
璁＄畻鏈恒�?/p>
MATLAB
杞欢
涓夛紟瀹為獙鏁版嵁鍜岃姹?/p>
1
銆?/p>
y1=sin(x)
锛?/p>
0
2
x
飦?/p>
飩?/p>
飩?/p>
锛夛紝
y2=cos(x)
锛?/p>
0
2
x
飦?/p>
飩?/p>
飩?/p>
锛夛紝绛夐棿闅斿彇
100
涓暟鎹偣锛屽湪
鍚屼竴涓浘褰㈢獥鍙ｄ腑鍒嗗埆缁樺埗浠ヤ笅鏇茬嚎锛?/p>
(1)
鐢ㄩ捇鐭崇鍙锋爣璁版暟鎹偣鐨勭孩鑹插疄绾跨敾
y1
鏇茬嚎锛?/p>
(2)
鐢ㄤ簲瑙掓槦绗﹀彿鏍囪鏁版嵁鐐圭殑钃濊壊铏氱嚎鐢?/p>
y2
鏇茬嚎锛?/p>
(3)
鏍囨敞鍥惧悕鈥?/p>
sin(
)
飦?/p>
鍜?/p>
cos(
)
飦?/p>
鐨勬洸绾库�?/p>
(5)
鏍囨敞涓ゆ潯鏇茬嚎鍒嗗埆涓衡�?/p>
sin(
)
飦?/p>
鈥濄�佲�?/p>
cos(
)
飦?/p>
鈥?/p>
(6)
鏍囨敞
x
杞粹�?/p>
飦?/p>
鈥濓紝鏍囨敞
y
杞粹�?/p>
sin(
)
飦?/p>
鍜?/p>
cos(
)
飦?/p>
鈥?/p>
(7)
鍒╃敤榧犳爣鎷栧姩瀹屾垚鏍囨敞鈥?/p>
鈫掆�?/p>
(8)
瀵瑰浘褰㈡坊鍔犵綉鏍?/p>
x=0:pi/100:2*pi; %
鐢熸垚
200
涓暟浣滀负鏁版嵁鐐?/p>
y1=sin(x);y2=cos(x); %
鐢熸垚鍑芥暟
y1,y2
figure(1);plot(x,y1,'r-d',x,y2,'b--*'); %
鐢?/p>
y1,y2
鍏充簬
x
鐨勫嚱鏁板浘鍍?/p>
grid on; %
缁欏浘鍍忕殑鑳屾櫙娣诲姞鏍呮牸
legend('sin(beta)','cos(beta)'); %
鏍囨敞鍥句緥
text(pi,0,'\leftarrow sin(\beta)');
gtext('cos(\beta)\rightarrow'); %
鐢ㄩ紶鏍囧畾浣嶆枃瀛?/p>
title('sin(beta)
鍜?/p>
cos(beta)'); %
鏍囧嚭鍥惧悕
xlabel('\beta');
ylabel('sin(\beta)
鍜?/p>
cos(\beta)')