# Exponential Curve

## History

## Description

The exponential curve is defined as E^x, where E is the constant Limit[(1 + 1/x)^x, x -> ∞]

## Formula

y == E^x

## Properties

### Relation to Log

### Caustic of expontial curve

The Catacaustic of the exponential curve E^x with light rays from above and parallel to the y axes is the catenary.

The exponential curve E^x has the interesting property itself. It is the only function whose derivative is itself.

## Related Web Sites

See: Websites on Plane Curves, Plane Curves Books.

Robert Yates: Curves and Their Properties.

2006-05

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