Test function
= Test function
{title2=$C_c^\infty$}
A test function is a smooth function with <compact support>. Weak and distributional equations are identities obtained by integrating against every test function.
= Test function
{title2=$C_c^\infty$}
A test function is a smooth function with <compact support>. Weak and distributional equations are identities obtained by integrating against every test function.