| Change log entry 62388 | |
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| Processed by: | ycandau (2016-07-29 09:29:31 UTC) |
| Comment: |
<< review queue entry 59094 - submitted by 'richwarm' >> It's about single-variable functions in general, not just linear functions. In single-variable calculus, the difference quotient is usually the name for the expression (f(x+h) - f(x)) / h which taken to the limit when h approaches 0, gives the derivative of the function f. https://en.wikipedia.org/wiki/Difference_quotient B ~ 差商（difference quotient)的定义： 函数f(x)在两个互异点xi,xj处的一阶差商定义为：f[xi,xj]=[f(xi)-f(xj)]/(xi-xj) |
| Diff: |
- 差商 差商 [cha1 shang1] /the quotient of differences (slope of a line in coordinate geometry)/ # + 差商 差商 [cha1 shang1] /difference quotient (f(x+h)-f(x))/h (math.)/ + 差商 差商 [cha1 shang1] /(math.) difference quotient/divided difference/finite difference/ |