Sentence examples for a comparatively difficult problem from inspiring English sources

The evolution of the industrial cluster has long been a comparatively difficult problem due to its complexity and the differing particularities of individual clusters.

However, the commanding terrain across the sometimes shallow creek made crossing the water a comparatively easy part of a difficult problem.

Constructing a nonnegative function is in general a difficult problem.

Levermann: This is a really difficult problem.

Pakistan poses a particularly difficult problem.

Mathematicians always like a deceptively difficult problem.

"But poverty is a very difficult problem.

It's a very difficult problem," Wolch said.

This is a very difficult problem however.

Moreover, choosing appropriate event costs is a notoriously difficult problem.

It's an incredibly difficult problem, and a challenge".