ExpCurve

Git Source

Inherits: BancorFormula

This contract is used to get the purchase and sale return values for an exponential curve.

Functions

getPurchaseReturn

Returns the purchase value using an Exponential Curve.

function getPurchaseReturn(uint256 supply, uint256 reserveBalance, uint32 reserveRatio, uint256 depositAmount)
    internal
    view
    returns (uint256 purchaseReturn);

Parameters

Name	Type	Description
supply	uint256	token total supply
reserveBalance	uint256	balance of the reserve token
reserveRatio	uint32	reserve ratio of the token
depositAmount	uint256	amount of tokens to purchase

Returns

Name	Type	Description
purchaseReturn	uint256	cost of the conversion

getSaleReturn

Returns the sale value using an Exponential Curve.

function getSaleReturn(uint256 supply, uint256 reserveBalance, uint32 reserveRatio, uint256 sellAmount)
    internal
    view
    returns (uint256 saleReturn);

Parameters

Name	Type	Description
supply	uint256	token total supply
reserveBalance	uint256	balance of the reserve token
reserveRatio	uint32	reserve ratio of the token
sellAmount	uint256	amount of tokens to sell

Returns

Name	Type	Description
saleReturn	uint256	return of the conversion