What is a non-convex cost function?

Updated May 15, 2026

Short answer

Non-convex functions have multiple local minima.

Deep explanation

Most deep learning cost functions are non-convex, making optimization harder due to multiple minima and saddle points.

Unlock with a Pro subscription to view this section.

View pricing

Real-world example

No real-world example available yet.

Unlock with a Pro subscription to view this section.

Upgrade to Pro

Common mistakes

No common mistakes listed yet.

Unlock with a Pro subscription to view this section.

Upgrade to Pro

Follow-up questions

No follow-up questions available yet.

Unlock with a Pro subscription to view this section.

Upgrade to Pro

More Cost Function interview questions

View all →