Using functionals in Mathematica
124791
Problem with function as an argument
146719
Functional equation $f(r \cos \varphi)+f(r \sin \varphi)=f(r)$
4516
Extracting the function from InterpolatingFunction object
84318
A problem with the functional $F(\chi) = \int_{\mathbb{R}}(\chi'^2+\chi^2(1-\chi)^2)dx$.
128751
Solving for $f(2004)$ in a given functional equation
55169
Minimal effort method for integrating C++ functions into Mathematica
133646
real analysis -functional equation
59476
What is the function __construct used for?
39835
Good book for self study of functional analysis
27016
Is the Lagrangian density a functional or a function?
92337
Points in rectangular coordinate system - specifying coordinates as function values
44650
Several stationary points of the action functional
47212
Solving functional equation
13042
Finding a function from the given functional equation .
129599
Functional Equation: Find all functions $f: \mathbb{R} \rightarrow \mathbb{R}$ such that $(x+y)(f(x)-f(y))=(x-y)f(x+y)$
71638
Integrating a step function using antiderivatives
11806
Functional equation.