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1 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
2 | % Figures de convexité par YetAnother_MT% | |
3 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
4 | ||
5 | %Préambule plutot minimal. | |
6 | \documentclass[a4paper,11pt]{article} | |
7 | ||
8 | \usepackage[utf8]{inputenc} | |
9 | \usepackage[T1]{fontenc} | |
10 | \usepackage{lmodern} | |
11 | \usepackage[french]{babel} | |
12 | ||
13 | %Le package de maths de base | |
14 | \usepackage{amsmath} | |
15 | % Un paquet de symboles mathématiques | |
16 | \usepackage{amssymb} | |
17 | %Permet d'utiliser \mathscr{} pour les lettes calligraphiées | |
18 | \usepackage{mathrsfs} | |
19 | ||
20 | %Permet d'utiliser l'envirronnement \begin{comment} ...\end{comment} pour faire de longs commentaires | |
21 | %sans utiliser % | |
22 | \usepackage{verbatim} | |
23 | ||
24 | %Définition des marges du document | |
25 | \usepackage[top=1cm, bottom=1cm, right=1cm, left=1cm]{geometry} | |
26 | ||
27 | ||
28 | %Package de dessin avec ses sous-packages | |
29 | \usepackage{tikz} | |
30 | \usetikzlibrary{positioning} | |
31 | \usetikzlibrary{calc} | |
32 | \usetikzlibrary{babel}%compatibilité babel & pgf | |
33 | ||
34 | \usetikzlibrary{arrows,arrows.meta} | |
35 | %Pour des T non italiques en mode maths | |
36 | \DeclareMathSymbol{T}{\mathalpha}{operators}{`T}% | |
37 | ||
38 | \begin{document} | |
39 | ||
40 | ||
41 | %Figure 1 | |
42 | { | |
43 | \begin{center} | |
44 | %Warning : declare function n'est pas compatible avec certains container genre parbox | |
45 | % ca provoque plein d'erreurs dures à déchiffrer. | |
46 | % Si c'est incontournable, il faut virer declare et mettre les expressions correspondantes | |
47 | %dans le reste du code. | |
48 | \begin{tikzpicture}[x=1cm,y=1cm,declare function={ f(\x)= 0.4*(.8*\x-1.6)^2+1; | |
49 | fprime(\x) = 2*0.4*.8*(.8*\x-1.6);}] | |
50 | ||
51 | \tikzstyle{every node}=[font=\footnotesize] | |
52 | ||
53 | \pgfmathsetmacro{\xmin}{-1} | |
54 | \pgfmathsetmacro{\ymin}{-1} | |
55 | \pgfmathsetmacro{\xmax}{7} | |
56 | \pgfmathsetmacro{\ymax}{5} | |
57 | ||
58 | ||
59 | \pgfmathsetmacro{\xA}{1} | |
60 | \pgfmathsetmacro{\xB}{4.5} | |
61 | \pgfmathsetmacro{\yA}{f(\xA)} | |
62 | \pgfmathsetmacro{\yB}{f(\xB)} | |
63 | \pgfmathsetmacro{\t}{.6} | |
64 | \pgfmathsetmacro{\xT}{\t*\xA+(1-\t)*\xB} | |
65 | \pgfmathsetmacro{\yT}{f(\xT)} | |
66 | \pgfmathsetmacro{\yTS}{\t*\yA+(1-\t)*\yB} | |
67 | ||
68 | \pgfmathsetmacro{\tA}{fprime(\xA)} | |
69 | \pgfmathsetmacro{\tT}{fprime(\xT)} | |
70 | \pgfmathsetmacro{\tB}{fprime(\xB)} | |
71 | ||
72 | %Axes | |
73 | \draw[>={angle 60},thick,->,color=black] (\xmin,0) -- (\xmax,0) node[above] {$x$} node[below] {$\mathbb{R}$}; | |
74 | \draw[>={angle 60},thick,->,color=black] (0,\ymin) -- (0,\ymax) node[right] {$y$} node[left] {$\mathbb{R}$}; | |
75 | ||
76 | ||
77 | ||
78 | \begin{scope} | |
79 | %Pour pas que la courbe deborde du cadre. | |
80 | \clip(\xmin,\ymin) rectangle (\xmax,\ymax); | |
81 | \draw[thick,smooth,samples=100,domain=\xmin:\xmax] plot(\x,{f(\x)}); | |
82 | %Malheureusement lui il faut le placer à la main : | |
83 | \node () at (5.4,4.7) {$\mathscr{C}_f$}; | |
84 | \end{scope} | |
85 | ||
86 | ||
87 | %Les coches dans l'axe des abscisses et les labels. | |
88 | \draw[thick,shift={(\xA,0)},color=red] (0,0.05) -- (0,-0.05) node[below] {$\vphantom{(t)}a$}; | |
89 | \draw[thick,shift={(\xB,0)},color=red] (0,0.05) -- (0,-0.05) node[below] {$\vphantom{(t)}b$}; | |
90 | \draw[thick,shift={(\xT,0)},color=black] (0,0.05) -- (0,-0.05) node[below] {$ta+(1-t)b$}; | |
91 | ||
92 | ||
93 | ||
94 | %Les sécantes | |
95 | \draw[thick,color=red] (\xA,\yA) --node[pos=.5] (CS) {} (\xB,\yB); | |
96 | ||
97 | ||
98 | %Les pointillés pour les points barycentres | |
99 | \draw[thick,dashed,color=black] (\xT,0) -- (\xT,\yTS); | |
100 | \draw[thick,dashed,color=black] (\xT,\yT) -- (0,\yT) node[left] {$f(ta+(1-t)b)$}; | |
101 | \draw[thick,dashed,color=black] (\xT,\yTS) -- (0,\yTS) node[left] {$tf(a)+(1-t)f(b)$}; | |
102 | ||
103 | ||
104 | ||
105 | %Les 4 points | |
106 | \draw[fill,color=red] (\xA,\yA) circle (2pt); | |
107 | \draw[fill,color=red] (\xB,\yB) circle (2pt); | |
108 | \draw[fill,color=black] (\xT,\yT) circle (2pt); | |
109 | \draw[fill,color=black] (\xT,\yTS) circle (2pt); | |
110 | ||
111 | ||
112 | ||
113 | \end{tikzpicture} | |
114 | ||
115 | \end{center} | |
116 | ||
117 | } | |
118 | ||
119 | ||
120 | %Figure 2 | |
121 | { | |
122 | \begin{center} | |
123 | ||
124 | %Warning : declare function n'est pas compatible avec certains container genre parbox | |
125 | % ca provoque plein d'erreurs dures à déchiffrer. | |
126 | % Si c'est incontournable, il faut virer declare et mettre les expressions correspondantes | |
127 | %dans le reste du code. | |
128 | \begin{tikzpicture}[x=1cm,y=1cm,declare function={ f(\x)= 0.4*(.8*\x-1.6)^2+1; | |
129 | fprime(\x) = 2*0.4*.8*(.8*\x-1.6);}] | |
130 | ||
131 | \tikzstyle{every node}=[font=\footnotesize] | |
132 | ||
133 | \pgfmathsetmacro{\xmin}{-1} | |
134 | \pgfmathsetmacro{\ymin}{-1} | |
135 | \pgfmathsetmacro{\xmax}{7} | |
136 | \pgfmathsetmacro{\ymax}{5} | |
137 | ||
138 | ||
139 | \pgfmathsetmacro{\xA}{1} | |
140 | \pgfmathsetmacro{\xB}{4} | |
141 | \pgfmathsetmacro{\yA}{f(\xA)} | |
142 | \pgfmathsetmacro{\yB}{f(\xB)} | |
143 | ||
144 | \pgfmathsetmacro{\tA}{fprime(\xA)} | |
145 | \pgfmathsetmacro{\tB}{fprime(\xB)} | |
146 | ||
147 | %Axes | |
148 | \draw[>={angle 60},thick,->,color=black] (\xmin,0) -- (\xmax,0) node[above] {$x$} node[below] {$\mathbb{R}$}; | |
149 | \draw[>={angle 60},thick,->,color=black] (0,\ymin) -- (0,\ymax) node[right] {$y$} node[left] {$\mathbb{R}$}; | |
150 | ||
151 | ||
152 | ||
153 | \begin{scope} | |
154 | %Pour pas que la courbe deborde du cadre. | |
155 | \clip(\xmin,\ymin) rectangle (\xmax,\ymax); | |
156 | \draw[thick,smooth,samples=100,domain=\xmin:\xmax] plot(\x,{f(\x)}) ; | |
157 | \node () at (5.4,4.7) {$\mathscr{C}_f$}; | |
158 | \end{scope} | |
159 | ||
160 | ||
161 | %Les coches dans l'axe des abscisses et les labels. | |
162 | \draw[thick,shift={(\xA,0)},color=red] (0,0.05) -- (0,-0.05) node[below] {$\vphantom{(t)}a$}; | |
163 | \draw[thick,shift={(\xB,0)},color=red] (0,0.05) -- (0,-0.05) node[below] {$\vphantom{(t)}b$}; | |
164 | ||
165 | ||
166 | ||
167 | %Les sécantes | |
168 | \draw[thick,color=red] (\xA,\yA) --node[pos=.5] (CS) {} (\xB,\yB); | |
169 | ||
170 | ||
171 | %Fleches donnant les pentes, orientation angulaire à partir du point de contact marqué, sans coller au point de contact (le .2) | |
172 | \draw[>=stealth,thick, <-,color=red] ($(CS) + (90:.2)$) -- +(90:1.5) node[above] {Pente $\dfrac{f(b)-f(a)}{b-a}$}; | |
173 | ||
174 | ||
175 | %Les tangentes | |
176 | ||
177 | \draw[thick] ($(\xA,\yA) - 1.5*(1,\tA)$) --node[pos=.1,below left] {$T_a$} node[pos=.8] (CA) {} ($(\xA,\yA) + (1,\tA)$); | |
178 | \draw[thick] ($(\xB,\yB) - (1,\tB)$) --node[pos=.1,below right] {$T_b$} node[pos=.8] (CB) {} ($(\xB,\yB) + (1,\tB)$); | |
179 | ||
180 | ||
181 | %Fleches donnant les pentes, orientation angulaire à partir du point de contact marqué, sans coller au point de contact (le .2) | |
182 | \draw[>=stealth,thick, <-] ($(CA) + (-90:.2)$) -- +(-90:1.5) node[below] {Pente $f'(a)$}; | |
183 | \draw[>=stealth,thick, <-] ($(CB) + (20:.2)$) -- +(20:1.5) node[right] {Pente $f'(b)$}; | |
184 | ||
185 | ||
186 | %Les points | |
187 | \draw[fill,color=red] (\xA,\yA) circle (2pt); | |
188 | \draw[fill,color=red] (\xB,\yB) circle (2pt); | |
189 | ||
190 | ||
191 | ||
192 | \end{tikzpicture} | |
193 | ||
194 | \end{center} | |
195 | } | |
196 | ||
197 | %Figure 3 | |
198 | { | |
199 | \begin{center} | |
200 | ||
201 | %Warning : declare function n'est pas compatible avec certains container genre parbox | |
202 | % ca provoque plein d'erreurs dures à déchiffrer. | |
203 | % Si c'est incontournable, il faut virer declare et mettre les expressions correspondantes | |
204 | %dans le reste du code. | |
205 | \begin{tikzpicture}[x=1cm,y=1cm,declare function={ f(\x)= 0.4*(.8*\x-1.6)^2+1; | |
206 | fprime(\x) = 2*0.4*.8*(.8*\x-1.6);}] | |
207 | ||
208 | \tikzstyle{every node}=[font=\footnotesize] | |
209 | ||
210 | \pgfmathsetmacro{\xmin}{-1} | |
211 | \pgfmathsetmacro{\ymin}{-1} | |
212 | \pgfmathsetmacro{\xmax}{7} | |
213 | \pgfmathsetmacro{\ymax}{5} | |
214 | ||
215 | ||
216 | \pgfmathsetmacro{\xA}{2.5} | |
217 | \pgfmathsetmacro{\yA}{f(\xA)} | |
218 | ||
219 | \pgfmathsetmacro{\tA}{fprime(\xA)} | |
220 | ||
221 | %Axes | |
222 | \draw[>={angle 60},thick,->,color=black] (\xmin,0) -- (\xmax,0) node[above] {$x$} node[below] {$\mathbb{R}$}; | |
223 | \draw[>={angle 60},thick,->,color=black] (0,\ymin) -- (0,\ymax) node[right] {$y$} node[left] {$\mathbb{R}$}; | |
224 | ||
225 | ||
226 | ||
227 | \begin{scope} | |
228 | %Pour pas que la courbe deborde du cadre. | |
229 | \clip(\xmin,\ymin) rectangle (\xmax,\ymax); | |
230 | \draw[thick,smooth,samples=100,domain=\xmin:\xmax] plot(\x,{f(\x)}); | |
231 | %Malheureusement lui il faut le placer à la main : | |
232 | \node () at (5.4,4.7) {$\mathscr{C}_f$}; | |
233 | \end{scope} | |
234 | ||
235 | ||
236 | %Les coches dans l'axe des abscisses et les labels. | |
237 | \draw[thick,shift={(\xA,0)},color=black] (0,0.05) -- (0,-0.05) node[below] {$\vphantom{(t)}a$}; | |
238 | ||
239 | %Les tangentes | |
240 | ||
241 | \draw[thick] ($(\xA,\yA) - 3*(1,\tA)$) --node[pos=.95,below] {$T_a$} node[pos=.8] (CA) {} ($(\xA,\yA) + 3*(1,\tA)$); | |
242 | ||
243 | %\draw[>=stealth,thick, <-] ($(CA) + (-90:.2)$) -- +(-90:1.5) node[below] {Pente $f'(a)$}; | |
244 | ||
245 | %Le point | |
246 | \draw[fill,color=black] (\xA,\yA) circle (2pt); | |
247 | ||
248 | \end{tikzpicture} | |
249 | ||
250 | \end{center} | |
251 | } | |
252 | ||
253 | %Figure 4 | |
254 | { | |
255 | \begin{center} | |
256 | ||
257 | %Warning : declare function n'est pas compatible avec certains container genre parbox | |
258 | % ca provoque plein d'erreurs dures à déchiffrer. | |
259 | % Si c'est incontournable, il faut virer declare et mettre les expressions correspondantes | |
260 | %dans le reste du code. | |
261 | \begin{tikzpicture}[x=1cm,y=1cm,declare function={ f(\x)= 0.4*(.8*\x-1.6)^2+1; | |
262 | fprime(\x) = 2*0.4*.8*(.8*\x-1.6);}] | |
263 | ||
264 | \tikzstyle{every node}=[font=\footnotesize] | |
265 | ||
266 | \pgfmathsetmacro{\xmin}{-1} | |
267 | \pgfmathsetmacro{\ymin}{-1} | |
268 | \pgfmathsetmacro{\xmax}{7} | |
269 | \pgfmathsetmacro{\ymax}{5} | |
270 | ||
271 | ||
272 | \pgfmathsetmacro{\xA}{1} | |
273 | \pgfmathsetmacro{\xB}{4.5} | |
274 | \pgfmathsetmacro{\yA}{f(\xA)} | |
275 | \pgfmathsetmacro{\yB}{f(\xB)} | |
276 | \pgfmathsetmacro{\t}{.6} | |
277 | \pgfmathsetmacro{\xT}{\t*\xA+(1-\t)*\xB} | |
278 | \pgfmathsetmacro{\yT}{f(\xT)} | |
279 | ||
280 | \pgfmathsetmacro{\tA}{fprime(\xA)} | |
281 | \pgfmathsetmacro{\tT}{fprime(\xT)} | |
282 | \pgfmathsetmacro{\tB}{fprime(\xB)} | |
283 | ||
284 | %Axes | |
285 | \draw[>={angle 60},thick,->,color=black] (\xmin,0) -- (\xmax,0) node[above] {$x$} node[below] {$\mathbb{R}$}; | |
286 | \draw[>={angle 60},thick,->,color=black] (0,\ymin) -- (0,\ymax) node[right] {$y$} node[left] {$\mathbb{R}$}; | |
287 | ||
288 | ||
289 | ||
290 | \begin{scope} | |
291 | %Pour pas que la courbe deborde du cadre. | |
292 | \clip(\xmin,\ymin) rectangle (\xmax,\ymax); | |
293 | \draw[thick,smooth,samples=100,domain=\xmin:\xmax] plot(\x,{f(\x)}); | |
294 | %Malheureusement lui il faut le placer à la main : | |
295 | \node () at (5.4,4.7) {$\mathscr{C}_f$}; | |
296 | \end{scope} | |
297 | ||
298 | ||
299 | %Les coches dans l'axe des abscisses et les labels. | |
300 | \draw[thick,shift={(\xA,0)},color=red] (0,0.05) -- (0,-0.05) node[below] {$\vphantom{(t)}a$}; | |
301 | \draw[thick,shift={(\xB,0)},color=red] (0,0.05) -- (0,-0.05) node[below] {$\vphantom{(t)}b$}; | |
302 | \draw[thick,shift={(\xT,0)},color=red] (0,0.05) -- (0,-0.05) node[below] {$\vphantom{(t)}c$}; | |
303 | ||
304 | ||
305 | ||
306 | %Les sécantes | |
307 | \draw[thick,color=red] (\xA,\yA) --node[pos=.5] (CS1) {} (\xT,\yT) --node[pos=.5] (CS2) {} (\xB,\yB); | |
308 | ||
309 | ||
310 | %Fleches donnant les pentes, orientation angulaire à partir du point de contact marqué, sans coller au point de contact (le .2 ou .1) | |
311 | \draw[>=stealth,thick, <-,color=red] ($(CS1) + (90:.2)$) -- +(90:1.5) node[above] {Pente $\dfrac{f(c)-f(a)}{c-a}$}; | |
312 | \draw[>=stealth,thick, <-,color=red] ($(CS2) + (-10:.1)$) -- +(-10:1.5) node[right] {Pente $\dfrac{f(b)-f(c)}{b-c}$}; | |
313 | ||
314 | - | %La figure de référence qui contient un peu tout. |
314 | + | |
315 | %Les tangentes | |
316 | \draw[thick] ($(\xT,\yT) - 2*(1,\tT)$) -- node[pos=.9,below right] {$T_c$} node[pos=.2] (CT) {} ($(\xT,\yT) + 2*(1,\tT)$); | |
317 | \draw[>=stealth,thick, <-] ($(CT) + (-70:.2)$) -- +(-70:2) node[below] {Pente $f'(c)$}; | |
318 | ||
319 | ||
320 | %Les points | |
321 | \draw[fill,color=red] (\xA,\yA) circle (2pt); | |
322 | \draw[fill,color=red] (\xB,\yB) circle (2pt); | |
323 | \draw[fill,color=red] (\xT,\yT) circle (2pt); | |
324 | ||
325 | \end{tikzpicture} | |
326 | ||
327 | \end{center} | |
328 | } | |
329 | ||
330 | %La figure de référence qui contient un peu tout, en commentaire. | |
331 | \begin{comment} | |
332 | { | |
333 | \begin{center} | |
334 | ||
335 | %Warning : declare function n'est pas compatible avec certains container genre parbox | |
336 | % ca provoque plein d'erreurs dures à déchiffrer. | |
337 | % Si c'est incontournable, il faut virer declare et mettre les expressions correspondantes | |
338 | %dans le reste du code. | |
339 | \begin{tikzpicture}[x=1cm,y=1cm,declare function={ f(\x)= 0.4*(.8*\x-1.6)^2+1; | |
340 | fprime(\x) = 2*0.4*.8*(.8*\x-1.6);}] | |
341 | ||
342 | \tikzstyle{every node}=[font=\footnotesize] | |
343 | ||
344 | \pgfmathsetmacro{\xmin}{-1} | |
345 | \pgfmathsetmacro{\ymin}{-1} | |
346 | \pgfmathsetmacro{\xmax}{7} | |
347 | \pgfmathsetmacro{\ymax}{5} | |
348 | ||
349 | ||
350 | \pgfmathsetmacro{\xA}{1} | |
351 | \pgfmathsetmacro{\xB}{4.5} | |
352 | \pgfmathsetmacro{\yA}{f(\xA)} | |
353 | \pgfmathsetmacro{\yB}{f(\xB)} | |
354 | \pgfmathsetmacro{\t}{.6} | |
355 | \pgfmathsetmacro{\xT}{\t*\xA+(1-\t)*\xB} | |
356 | \pgfmathsetmacro{\yT}{f(\xT)} | |
357 | \pgfmathsetmacro{\yTS}{\t*\yA+(1-\t)*\yB} | |
358 | ||
359 | \pgfmathsetmacro{\tA}{fprime(\xA)} | |
360 | \pgfmathsetmacro{\tT}{fprime(\xT)} | |
361 | \pgfmathsetmacro{\tB}{fprime(\xB)} | |
362 | ||
363 | %Axes | |
364 | \draw[>={angle 60},thick,->,color=black] (\xmin,0) -- (\xmax,0) node[above] {$x$} node[below] {$\mathbb{R}$}; | |
365 | \draw[>={angle 60},thick,->,color=black] (0,\ymin) -- (0,\ymax) node[right] {$y$} node[left] {$\mathbb{R}$}; | |
366 | ||
367 | ||
368 | ||
369 | \begin{scope} | |
370 | %Pour pas que la courbe deborde du cadre. | |
371 | \clip(\xmin,\ymin) rectangle (\xmax,\ymax); | |
372 | \draw[thick,smooth,samples=100,domain=\xmin:\xmax] plot(\x,{f(\x)}); | |
373 | %Malheureusement lui il faut le placer à la main : | |
374 | \node () at (5.4,4.7) {$\mathscr{C}_f$}; | |
375 | \end{scope} | |
376 | ||
377 | ||
378 | %Les coches dans l'axe des abscisses et les labels. | |
379 | \draw[thick,shift={(\xA,0)},color=red] (0,0.05) -- (0,-0.05) node[below] {$\vphantom{(t)}a$}; | |
380 | \draw[thick,shift={(\xB,0)},color=red] (0,0.05) -- (0,-0.05) node[below] {$\vphantom{(t)}b$}; | |
381 | \draw[thick,shift={(\xT,0)},color=black] (0,0.05) -- (0,-0.05) node[below] {$ta+(1-t)b$}; | |
382 | ||
383 | ||
384 | ||
385 | %Les sécantes | |
386 | \draw[thick,color=red] (\xA,\yA) --node[pos=.5] (CS) {} (\xB,\yB); | |
387 | \draw[thick,color=red] (\xA,\yA) -- (\xT,\yT) -- (\xB,\yB); | |
388 | \draw[>=stealth,thick, <-,color=red] ($(CS) + (90:.2)$) -- +(90:1.5) node[above] {Pente $\dfrac{f(b)-f(a)}{b-a}$}; | |
389 | ||
390 | ||
391 | %Les pointillés pour les points barycentres | |
392 | \draw[thick,dashed,color=black] (\xT,0) -- (\xT,\yTS); | |
393 | \draw[thick,dashed,color=black] (\xT,\yT) -- (0,\yT) node[left] {$f(ta+(1-t)b)$}; | |
394 | \draw[thick,dashed,color=black] (\xT,\yTS) -- (0,\yTS) node[left] {$tf(a)+(1-t)f(b)$}; | |
395 | ||
396 | %Les tangentes | |
397 | ||
398 | \draw[thick] ($(\xA,\yA) - 1.5*(1,\tA)$) --node[pos=.1,below left] {$T_a$} node[pos=.8] (CA) {} ($(\xA,\yA) + (1,\tA)$); | |
399 | \draw[thick] ($(\xB,\yB) - (1,\tB)$) --node[pos=.1,below right] {$T_b$} node[pos=.8] (CB) {} ($(\xB,\yB) + (1,\tB)$); | |
400 | \draw[thick] ($(\xT,\yT) - 3*(1,\tT)$) -- node[pos=.9,below] {$T_t$} node[pos=.2] (CT) {} ($(\xT,\yT) + 3*(1,\tT)$); | |
401 | ||
402 | %Fleches donnant les pentes, orientation angulaire à partir du point de contact marqué, sans coller au point de contact (le .2) | |
403 | \draw[>=stealth,thick, <-] ($(CT) + (-70:.2)$) -- +(-70:2) node[below] {\shortstack{Pente\\ $\dfrac{f(b)-f(a)}{b-a}$}}; | |
404 | \draw[>=stealth,thick, <-] ($(CA) + (-90:.2)$) -- +(-90:1.5) node[below] {Pente $f'(a)$}; | |
405 | \draw[>=stealth,thick, <-] ($(CB) + (20:.2)$) -- +(20:1.5) node[right] {Pente $f'(b)$}; | |
406 | ||
407 | ||
408 | ||
409 | %Les 4 points | |
410 | \draw[fill,color=red] (\xA,\yA) circle (2pt); | |
411 | \draw[fill,color=red] (\xB,\yB) circle (2pt); | |
412 | \draw[fill,color=black] (\xT,\yT) circle (2pt); | |
413 | \draw[fill,color=black] (\xT,\yTS) circle (2pt); | |
414 | ||
415 | \end{tikzpicture} | |
416 | ||
417 | \end{center} | |
418 | } | |
419 | \end{comment} | |
420 | ||
421 | \end{document} |