Home > @esengine/ecs-framework-monorepo > MathUtils > arithmeticSum
MathUtils.arithmeticSum() method
等差数列求和
Signature:
typescript
static arithmeticSum(first: number, last: number, count: number): number;Parameters
Parameter | Type | Description |
|---|---|---|
first | number | 首项 |
last | number | 末项 |
count | number | 项数 |
Returns:
number
等差数列和