74 lines
1.6 KiB
Gnuplot
74 lines
1.6 KiB
Gnuplot
#définition de quelques variables
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xmin=-6.
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xmax=6.
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ymin=-4.
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ymax=4.
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xdec=0.25
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ydec=0.25
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pasx=1.0
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pasy=1.0
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#initialisation du terminal
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reset
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set term x11
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unset autoscale
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set xr [xmin:xmax]
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set yr [ymin:ymax]
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#options
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unset border
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unset label
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unset xtics
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unset ytics
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set title "fonction tangente"
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#les axes
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set arrow 3 from xmin,0 to xmax,0,3 lt -1 lw 0.5
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set arrow 4 from 0,ymin to 0,ymax,3 lt -1 lw 0.5
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#l'origine
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set label "0" at xdec/2, -ydec
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set label "x" at xmax - pasx, -ydec
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set label "y" at -xdec, ymax - pasy/3
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set label "1" at pasx, -ydec
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set label "1" at -3*xdec/2, pasy
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set label "-1" at -3*xdec/2, -pasy
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set arrow from 1, -ydec/2 to 1, ydec/2 nohead lt -1
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set arrow from 1.57, -ydec/2 to 1.57, ydec/2 nohead lt -1
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set label "\34/2" at 1.57, -ydec center
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set arrow from -1.57, -ydec/2 to -1.57, ydec/2 nohead lt -1
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set label "-\34/2" at -1.57, -ydec center
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set arrow from 3.1415, -ydec/2 to 3.1415, ydec/2 nohead lt -1
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set label "\34" at 3.1415, -ydec center
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set arrow from -3.1415, -ydec/2 to -3.1415, ydec/2 nohead lt -1
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set label "-\34" at -3.1415, -ydec center
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set arrow from 0, 0 to pasx, pasx lt 1
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set arrow from 0, 0 to -pasx, -pasx lt 1
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set arrow from -xdec/3, 1 to xdec/3, 1 nohead lt -1
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set arrow from -xdec/3, -1 to xdec/3, -1 nohead lt -1
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set arrow from -1.57, ymax to -1.57, ymin nohead lt 0
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set arrow from 1.57, ymax to 1.57, ymin nohead lt 0
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plot tan(x) title "tan" w l lt 3 lw 2
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pause -1 "maintenant va créer un fichier au format png appuyer sur entrée"
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set term png
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set out "exemple2.png"
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rep
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set out
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set term x11
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pause -1 "touche entrée pour sortir"
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