Linked from

The 12 pages that link to Gaussian function, each with the reason it gives.

• Dirac delta functionCompared with: A normalized Gaussian can approximate the delta as its width tends to zero, but never has point support at finite width.

• Dirac combCompared with: Its smooth continuous shape contrasts with the comb's discrete impulse support.

• Rectangular functionCompared with: Its tails extend indefinitely instead of ending at sharp rectangular boundaries.