8-2 ?稿?芥暩?勪???

璝璶矪瞶计厩ㄧ计иゲ斗盢计厩ㄧ计糶Θ MATLAB ㄧΑㄏノ﹃┪跑计ㄓㄧΑ獽秈︽˙矪瞶ㄓ弧иΤㄢ贺よΑ匡ノ

硂絛ㄒи碞ㄏノ硂ㄢ贺よΑㄓ﹚ humps.m ㄧΑノfplot ㄓ秈︽计厩ㄧ计瓜ㄒ璝璶礶 humps ㄧ计 [0,2] 丁Ρ絬块

Example 1: 08-计厩ㄧ计矪瞶籔だ猂/fplot01.msubplot(2,1,1); fplot('humps', [0,2]); % ㄏノ﹃﹚ㄧΑ subplot(2,1,2); fplot(@humps, [0 2]); % ㄏノㄧΑ搐рㄓ﹚ㄧΑ

パ瓃絛ㄒㄏノ﹃㎝ㄧΑ搐р┮眔挡狦琌妓絛ㄒ盢荷秖ㄏノㄧΑ搐рㄓ﹚ㄧΑ硂琌 MATLAB 穝や穿よΑτㄤ磅︽瞯ゑ耕蔼

ㄏノ fplot眤э跑 x ㎝ y 跋丁ㄒ

Example 2: 08-计厩ㄧ计矪瞶籔だ猂/fplot02.mfplot(@humps, [0 1 5 25]); grid on % 礶絬

 x 跋丁 [0, 1]y 跋丁 [5, 25]

fplot 钡讽初ボ计厩ㄧ计τぃǎ眔璶盢计厩ㄧ计糶Θ MATLABㄧΑㄒ

Example 3: 08-计厩ㄧ计矪瞶籔だ猂/fplot021.msubplot(2,1,1); fplot('sin(2*x)+cos(x)', [-10, 10]) % ㄏノ﹃﹚ㄧΑ subplot(2,1,2); fplot(@(x)sin(2*x)+cos(x), [-10, 10]) % ㄏノㄧΑ搐рㄓ﹚ㄧΑ

瓃絛ㄒいиㄏノ﹃㎝ㄧΑ搐рㄓ﹚计厩ㄧ计 sin(2x)+cos(x)

fplot 癸ㄧ计瓜惠璶盢硂ㄇㄧ计秖絛ㄒ

Example 4: 08-计厩ㄧ计矪瞶籔だ猂/fplot022.m% fplot 癸ㄧ计瓜 fplot(@(x)[sin(x), exp(-x)], [0, 10])

秈︽贺笲衡盢跑计 x Θ琌︽秖Column Vectorτ [sin(x), exp(-x)] 玥琌︽秖–︽秖ㄧ计兵Ρ絬

fplot 膀セ琌磞翴瓜摸 plot(x, y)琌 x 畒夹翴盞栋琌沮ㄧ计跑てτ∕﹚玻ネゑ耕¨稻龟〃ㄧ计瓜饼陪ボ fplot ┮玻ネ x 畒夹翴块

Example 5: 08-计厩ㄧ计矪瞶籔だ猂/fplot03.m[x, y] = fplot(@humps, [-1,2]); plot(x, y, '-o');

パ瓜fplot 穦ㄧ计跑てキ絯矪玻耕祡波妓翴τㄧ计跑て粿疨矪玻ネ耕候盞妓翴

璝饼玻ネ盞 x 畒夹翴 fplot 癸甧гTolerance块ま计羭ㄒ

Example 6: 08-计厩ㄧ计矪瞶籔だ猂/fplot04.msubplot (2,1,1); fplot(@(x)sin(1./x), [0.01,0.1]); subplot (2,1,2); fplot(@(x)sin(1./x), [0.01,0.1], 0.0001);

材瓜いfplot ㄏノ箇砞癸甧гㄤ 0.002材瓜い癸甧г砆砞 0.0001и眔非絋瓜癸璶璸衡の瓜丁

ezplot ㎝ fplot 摸ぃ筁ㄏノ虏獽ㄒ璝璶礶Ω兜Α $f(x)=x^3-x^2+x$ 瓜块

Example 7: 08-计厩ㄧ计矪瞶籔だ猂/ezplot01.mezplot(@(x)x^3-x^2+x);{Warning: Function failed to evaluate on array inputs; vectorizing the function may speed up its evaluation and avoid the need to loop over array elements.} {> In <a href="matlab: opentoline('C:\Program Files\MATLAB\R2012a\toolbox\matlab\specgraph\ezplot.m',483,1)">ezplot>ezplot1 at 483</a> In <a href="matlab: opentoline('C:\Program Files\MATLAB\R2012a\toolbox\matlab\specgraph\ezplot.m',145,1)">ezplot at 145</a> In <a href="matlab: opentoline('D:\users\jang\books\matlabProgramming4guru\example\08-计厩ㄧ计矪瞶籔だ猂\ezplot01.m',1,1)">ezplot01 at 1</a> In <a href="matlab: opentoline('D:\users\jang\books\goWriteOutputFile.m',75,1)">goWriteOutputFile>dummyFunction at 75</a> In <a href="matlab: opentoline('D:\users\jang\books\goWriteOutputFile.m',52,1)">goWriteOutputFile at 52</a>}

ezplot 箇砞瓜絛瞅琌 $[-2\pi, 2\pi]$瓜┮ボ

ezplot ノ礶把计ΑΡ絬絛ㄒいиㄏノ ezplot ㄓ礶ボ猧竟盽履瓜LissajiousˇFiguers

Example 8: 08-计厩ㄧ计矪瞶籔だ猂/ezplot02.m% ezplot 礶キい把计ΑΡ絬 ezplot(@(t)sin(3*t), @(t)cos(5*t));

礶把计ΑΡ絬把计箇砞絛瞅ご礛琌 $[-2\pi, 2\pi]$

ezplot ョノ留ㄧ计瓜ㄒ璝璶礶 $x^3+2x^2-3x+5-y^2+10=0$ 瓜磅︽絛ㄒ

Example 9: 08-计厩ㄧ计矪瞶籔だ猂/ezplot03.m% ezplot ョノ留ㄧ计瓜 ezplot(@(x,y)x^3+2*x^2-3*x-y^2+15);{Warning: Function failed to evaluate on array inputs; vectorizing the function may speed up its evaluation and avoid the need to loop over array elements.} {> In <a href="matlab: opentoline('C:\Program Files\MATLAB\R2012a\toolbox\matlab\specgraph\private\ezplotfeval.m',57,1)">specgraph\private\ezplotfeval at 57</a> In <a href="matlab: opentoline('C:\Program Files\MATLAB\R2012a\toolbox\matlab\specgraph\ezplot.m',256,1)">ezplot>ezimplicit at 256</a> In <a href="matlab: opentoline('C:\Program Files\MATLAB\R2012a\toolbox\matlab\specgraph\ezplot.m',154,1)">ezplot at 154</a> In <a href="matlab: opentoline('D:\users\jang\books\matlabProgramming4guru\example\08-计厩ㄧ计矪瞶籔だ猂\ezplot03.m',2,1)">ezplot03 at 2</a> In <a href="matlab: opentoline('D:\users\jang\books\goWriteOutputFile.m',75,1)">goWriteOutputFile>dummyFunction at 75</a> In <a href="matlab: opentoline('D:\users\jang\books\goWriteOutputFile.m',52,1)">goWriteOutputFile at 52</a>}

ezplot 临Τㄤウ匡兜冈ǎ MATLAB 絬や穿

Hint
ezplotいez璣ゅeasyョ碞琌虏虫甧種摸酶瓜临Τ ezplot3ezpolarezsurfezmeshezsurfcezmeshcecontourezcontourf 单 冈ǎ MATLAB 絬や穿


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