info prev up next book cdrom email home

Lower Sum


For a given function $f(x)$ over a partition of a given interval, the lower sum is the sum of box areas $f(x_k^*)\Delta x_k$ using the smallest value of the function $f(x_k^*$) in each subinterval $\Delta x_k$.

See also Lower Integral, Riemann Integral, Upper Sum

© 1996-9 Eric W. Weisstein