612.sagews

'Grafy funkci jedne promenne'

'Grafy funkci jedne promenne'

g1 = plot(cos(x), -2*pi, 2*pi); g1 #jednoduchy graf funkce jedne promenne

show(g1, aspect_ratio = 1) #pomer stran 1:1

plot([sin(x), cos(x)], 0, 2*pi, fill=True, linestyle='--')

r1 = plot(sin(x)^2, 0, 2*pi, color = (0,0,0), fill = True, fillcolor = "yellow", linestyle = '--')
r2 = plot(sin(x)^3, 0, 2*pi, color = '#000000', fill = True, fillcolor = '#D3DAED', linestyle = ':')
r1 + r2

'Grafy funkci vice promennych'

'Grafy funkci vice promennych'

y = var('y')
plot3d(sin(x)*cos(y), (x,-pi,pi), (y,-pi,pi)) #jednoduchy graf fce dvou promennych

plot3d(sqrt(x**2 + y**2 + x*y), (x,-10,10), (y,-10,10), opacity=0.87, frame=False)

f = x^2 + y^3 - 75*x*y
fx = plot3d(diff(f, x), (x,-25,25), (y,-25,25), opacity = 0.7, color = 'red')
fy = plot3d(diff(f,y), (x,-25,25), (y,-25,25), opacity = 0.7, color = 'green')
show(fx + fy, axes = True, frame = False)