Sponsored links: Algebra eBooks
 

Help Index

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

The Maxima on-line user's manual

Algebra Calculator

Search:

Contour_plot Calculator

Contour_plot

Function: contour_plot (<expr>, <x_range>, <y_range>, <options>, ...) It plots the contours (curves of equal value) of <expr> over the region <x_range> by <y_range>. Any additional arguments are treated the same as in plot3d.

contour_plot(F*C,[F,0,10],[C,0,100]);

This function only works when the plot format is either gnuplot or gnuplot_pipes. The additional package implicit_plot can also be used to plot contours and it works for any format. See implicit_plot.

Examples:

          (%i1) contour_plot (x^2 + y^2, [x, -4, 4], [y, -4, 4])$

          (%i1) F(x, y) := x^3 + y^2;
                                             3    2
          (%o1)                  F(x, y) := x  + y
          (%i2) contour_plot (F, [u, -4, 4], [v, -4, 4])$

You can add any options accepted by plot3d; for instance, the option legend with a value of false, to remove the legend. Gnuplot chooses, by default, 3 contours to show. to increase the number of levels, it is necessary to specify a custom gnuplot preamble:

          (%i1) contour_plot (u^3 + v^2, [u, -4, 4], [v, -4, 4],
          (%i2) [legend,false], [gnuplot_preamble,"set cntrparam levels 12"])$

(%o1)                                true
(%i2) 

Contour_plot Example

Related Examples

contour_plot
contour_plot(F^3*C,[F,0,100],[C,0,100]);

contour_plot(F^3*C,[F...

Calculate

contour_plot-exp-min-plot3d-sqrt
plot3d([min(0.75*3100/(6.28*40e-3*sqrt(x^2+y^2))*exp(-2250.0/(60*2*8.0)*(x+sqrt(x^2+y^2))),1600),[x,-30,3],[y,-5,5]],[mesh_lines_color, true], [colorbox, true],[elevation,30],[azimuth,30]);

plot3d([min(0.75*3100...

contour_plot (0.75*3...

Calculate

contour_plot-exp-min-plot3d-sqrt
plot3d([min(0.75*3100/(6.28*40e-3*sqrt(x^2+y^2))*exp(-2250.0/(60*2*8.0)*(x+sqrt(x^2+y^2))),1600),[x,-30,3],[y,-5,5]],[mesh_lines_color, true], [colorbox, true],[legend,"T [celsius]"],[elevation,30],[azimuth,30]);

plot3d([min(0.75*3100...

contour_plot (min(0....

Calculate

contour_plot-exp-min-plot3d-sqrt
plot3d([min(0.75*3100/(6.28*40e-3*sqrt(x^2+y^2))*exp(-2250.0/(60*2*8.0)*(x+sqrt(x^2+y^2))),1600),[x,-30,3],[y,-5,5]],[mesh_lines_color, true], [colorbox, true],[legend,"T [celsius]"],[elevation,30],[azimuth,30]);

plot3d([min(0.75*3100...

contour_plot (min(0....

Calculate

contour_plot-exp
contour_plot(0.02*exp(-((x-5)^2+(y+2)^2)/36)+0.02*exp(-((x+5)^2+(y-2)^2)/36)+0.02*exp(-((x+5)^2+(y+2)^2)/36)+0.02*exp(-((x-5)^2+(y-2)^2)/36),[x,-20,20],[y,-20,20]);

contour_plot(0.02*exp...

Calculate

contour_plot-exp-min-plot2d-plot3d-sqrt-sum
plot3d([min(T(x,0,z),1600),[x,-30,3],[z,-H,0]],[mesh_lines_color, true], [colorbox, true],[legend,"T [celsius]"],[elevation,30],[azimuth,30]);

/* Temperatura inicia...

/* Potência da fonte ...

/* Velocidade de sold...

Calculate

contour_plot-exp-min-sqrt
contour_plot (min(0.75*3100/(6.28*40e-3*sqrt(x^2+y^2))*exp(-2250.0/(60*2*8.0)*(x+sqrt(x^2+y^2))),1600), [x, -30, 3], [y, -5, 5],[legend,"T [celsius]"],[gnuplot_preamble,"set key outside"]);

contour_plot (min(0.7...

Calculate

contour_plot
contour_plot(F^3*C,[F,0,100],[C,0,100]);

contour_plot(F^3*C,[F...

Calculate

contour_plot
contour_plot(100*0.5^((AngularVelocity/TrackingSpeed*400/400)^2),[AngularVelocity,0.0,1.0],[TrackingSpeed,0.0,1.0],[legend,"%"],[grid,100,100],[color,red,yellow,green],[gnuplot_preamble, "set cntrparam levels 20"]);

contour_plot(100*0.5^...

Calculate

contour_plot
contour_plot ((x-2)^2 + (y-2)^2, [x, -4, 8], [y, -4, 8]);

contour_plot ((x-2)^2...

eqn2 : y+1 = 2*(x-2);

Calculate