Dear Hans,

I read the manual of luametafun and do some examples.

Thanks for many new features.

It is  really great.

I’d like to ask two things. 

1. On  page 26,27, in the manual, 

a function name of the graphics are appeared as same as in the argument ‘function = “x^2 + y^2”’. 

Though it calculates function using “x^2 + y^2”,  it is better to write the name of it as the output of $x^2 + y^2$.

Is it possible to write  it as in mathematical form?

2. To define a mathematical function, it uses “function = “ in Contour, while it uses “code = “ in Surfaces and in Functions.

Is there any reason to use two different names “function” and “code” to define functions?  

Thank you again.

Best regards,

Dalyoung