gnuplot gnuplot 1 3 y = x 3 + 3x 2 2 y = sin x sin(x) xxx+3xx

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しまなみおか
4 years ago
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1 gnuplot gnuplot y = x + x y = sin x.8 sin(x) x*x*x+*x*x gnuplot gnuplot> set xrange[-.:.] gnuplot> plot x**+*x** y = x x gnuolot> reset gnuplot> plot sin(x) y = cos x cos(x). x**-x** gnuplot> reset gnuplot> plot cos(x) gnuplot> set xrange[-.:.] gnuplot> plot x**-x** gnuplot> reset

2 tan(x) gnuplot> plot tan(x) y = tan(x) x y ( ) tan(x) gnuplot> set samples 7 gnuplot> plot tan(x) y y tan(x) gnuplot> set yrange[-:] gnuplot> plot tan(x)

3 cos(t), sin(t) x = a cos t, y = a sin t x + y = a (a = ) gnuplot> set size square gnuplot> set parametric dummy variable is t for curves, u/v for surfaces gnuplot> plot cos(t), sin(t) cos(t),.*sin(t) x = a cos t, x a + y b = y = b sin t a =, b =. gnuplot> set size square gnuplot> set xrange[-:] gnuplot> set yrange[-:] gnuplot> set parametric dummy variable is t for curves, u/v for surfaces gnuplot> plot cos(t),.*sin(t)

4 x = a cos t, y = b tan t x a y - b = - /cos(t), tan(t) - - a =, b = gnuplot> set size square gnuplot> set xrange[-:] gnuplot> set yrange[-:] gnuplot> set parametric dummy variable is t for curves, u/v for surfaces gnuplot> plot /cos(t), tan(t) sin(*t), sin(*t) x = sin at, y = sin bt.8.6 a =, b = gnuplot> reset gnuplot> set size square gnuplot> set parametric dummy variable is t for curves, u/v for surfaces gnuplot> plot sin(*t), sin(*t)

5 r = at (t ) t*cos(t), t*sin(t) a = x = t cos t, y = t sin t - gnuplot> reset gnuplot> set size square gnuplot> set xrange[-*pi:*pi] gnuplot> set yrange[-*pi:*pi] gnuplot> set parametric dummy variable is t for curves, u/v for surfaces gnuplot> plot [: *pi] t*cos(t), t*sin(t) z = x a + y b x**+*y** a =, b = / gnulot> splot x**+*y**

6 z = x a y b x**-*y** a =, b = / gnulot> splot x**-*y** x = sin(u) cos(v) y = sin(u) sin(v) z = cos(u) gnuplot> reset gnuplot> set view equal xyz gnuplot> set ticslevel gnuplot> set isosamples gnuplot> set hiddend gnuplot> set parametric sin(u)*cos(v), sin(u)*sin(v), cos(u) dummy variable is t for curves, u/v for surfaces gnuplot> splot sin(u)*cos(v), sin(u)*sin(v), cos(u) 6

7 x = a cos(u)(d + cos(v)) y = b sin(u)(d + cos(v)) z = c sin(v) a = b = c =, d =. gnuplot> set parametric gnuplot> splot cos(u)*(.+cos(v)), sin(u)*(.+cos(v)), sin(v) cos(u)*(.+cos(v)), sin(u)*(.+cos(v)), sin(v) gnuplot> set isosamples gnuplot> replot cos(u)*(.+cos(v)), sin(u)*(.+cos(v)), sin(v) gnuplot> set hiddend gnuplot> replot cos(u)*(.+cos(v)), sin(u)*(.+cos(v)), sin(v)

8 6 - ( ) ( ) plt wgnuplot.exe File Open plt 6. sine.plt sine.plt reset set terminal postscript set output "sine.ps" set size,. set size ratio - set xzeroaxis set yzeroaxis set xtics ("-p" -pi, "-p/" -pi/,""., "p/" pi/,"p" pi) font "Symbol" set ytics -,., set xrange[-pi:pi] plot sin(x). sin(x) -. - π π/ π/ π ( ) 8

9 () reset () set terminal postscript () set output sine.ps ( ) sine.ps () set size,. x y. () set size ratio - x y (6) set xzeroaxis x (7) set yzeroaxis y (8) set xtics ( -p -pi, -p/ -pi/,., p/ pi/, p pi) font Symbol pi π ( ) { -p -pi } -pi. π Symbol (9) set ytics -,., y. () set xrange[-pi:pi] x π π () plot sin(x) y = sin(x) 9

10 6. y = x (x + ) + c y = x (x + ) + c c.,,.... y =x (x+)+. y =x (x+) y =x (x+) : y = x (x + ) + c c =.,,. c = c = ±. y=f(x).plt reset set terminal postscript portrait set output "y=x(x+).ps" set nokey set size square set xrange[-.:.] set yrange[-.:.] set samples # c=. set label "y^=x^(x+)" at -,. font Times Roman-Italic, plot sqrt(x***(x+)+c), -sqrt(x***(x+)+c) w l ls - sqrt(x***(x+)+c), -sqrt(x***(x+)+c) w l ls - () x x** x x^ () plot y = x (x + ) + c y = x (x + ) + c w l ls - with line linestyle - ls -

11 7 L A TEX x π π/ π LA TEX L A TEX (math mode) π ${ frac{ pi}{}}$ LA TEX.. π π π π plt costex.plt reset set terminal latex set nokey set output "costex.tex" set size ratio - set xtics ("${-\\pi}$" -pi, "${-\\frac{\\pi}{}}$" -pi/, "$$"., \ "${ \\frac{\\pi}{}}$" pi/, "${\\pi}$" pi) set ytics -,., set xzeroaxis set yzeroaxis set xrange [-pi:pi] set yrange [-:] plot cos(x) () \ () \( )

12 π π LA TEX ${ displaystyle frac{ pi}{}}$.. π π π π plt costex.plt reset set terminal latex set nokey set output "costex.tex" set size ratio - set xtics ("\\lowerex\\hbox{${-\\pi}$}" -pi, \ "\\lower6ex\\hbox{${\\displaystyle -\\frac{\\pi}{}}$}" -pi/, \ "\\lowerex\\hbox{$$}"., \ "\\lower6ex\\hbox{${\\displaystyle \\frac{\\pi}{}}$}" pi/, \ "\\lowerex\\hbox{${\\pi}$}" pi) set ytics -,., set xzeroaxis set yzeroaxis set xrange [-pi:pi] set yrange [-:] plot cos(x)

13 8 l-spiral.plt l-spiral.plt reset set terminal png set output "l-spiral.png" set size square set xzeroaxis set yzeroaxis set nokey set parametric set label "a=, b =." at 6, font, 8 set xrange[-*pi:*pi] set yrange[-*pi:*pi] a= b=. plot[-*pi:*pi] a*exp(b*t)*cos(t), a*exp(b*t)*sin(t) a=, b =

14 main.plt spiral.plt main.plt reset set nokey # set term gif animate set output "spiral.gif" # gif # load "spiral.plt" spiral.plt # if(exist("n")== n<) n = # # # set parametric set size square set xrange[-*pi:*pi] set yrange[-*pi:*pi] set samples a= b=. plot[-*pi:*pi] a*exp(b*t)*cos(t-pi*n/), a*exp(b*t)*sin(t-pi*n/) # # n = n + # if ( n < ) reread # undefine n #

y2=x2(x+1)-001.ps

y2=x2(x+1)-001.ps gnuplot gnuplot y = x +x y = sinx.8 sin(x) 8 7 6 x*x*x+*x*x.6.. -. -. -.6 -.8 - - - - - - - -. - -. - -.. gnuplot y = cosx gnuplot> set xrange[-.:.] gnuplot> plot x**+*x** gnuolot> reset gnuplot> plot