f(x, g(x,y)) + f(g(x,y), y) >= f(g(x,y), g(x,y))
f(x, g(x,y)) + f(x, g(x,y)) >= f(g(x,y), y)

f(x, g(x,y)) + f(x, g(x,y)) >= g(f(x,y), y)

f(x, g(x,y))*f(x, g(x,y)) >= f(g(x,y), y)

how to create a combinations of function of another function in maple

plot(t+1, t); plot(t+1, t = -1 .. 1);

Error, (in plot) incorrect first argument t+1
Error, (in plot) incorrect first argument t+1

in maplesim 7

when run example below

http://www.maplesoft.com/products/maplesim/modelgallery/detail.aspx?id=120

got error in linear_string and linear_string2

prototype must be a structured record type or a record, but received squeezed

2.

http://www.maplesoft.com/products/maplesim/modelgallery/detail.aspx?id=247

There is a problem with the modelica code for custom component named CorneringForce
Regenerate or delete this component to correct this porblem....

........Matrix2Euler

i click the web said USD99

but after click into it, academic version is USD1,555

there are commercial version, academic version , what are difference?

i see that there are self balance robot and humanoid walk robot

what are the specification of size, length of components are they?

if simulate robot hand which has a string make a tension to grip object

what kind of string is it? where can buy robots components which fit the simulations it do?

will maplesoft cooperate with 3D printer to fit the reality of robots?

after tried dsolve(sol, [a,b,c]) or dsolve(sol,t), still have errors

First equation

sol := a*(diff(M(a, b, c), a))+a*b*(diff(M(a, b, c), b))*c
dsolve(sol);
Error, (in ODEtools/info) Required a specification of the indeterminate function

Second Equation

sol := a(t)*(diff(a(t), t))+a(t)*b(t)*(diff(b(t), t))*c(t)
dsolve(sol);
Error, (in ODEtools/info) Required a specification of the indeterminate function