The saturated zone is bounded above by a water table . 飽和帶的上界面為潛水面。
Theorem 1 ( bounded sum test ) a series of nonnegative terms converges if and only if it ' s partial sums are bounded above 定理1正項級數收斂的充分必要條件是:它的部分和數列有上界。
Are i . i . d . random variables bounded above while the infection rate is a constant . the contact process survives locally for every 是獨立同分布而且有上界的隨機變量,感染的速率是常數
Theorem 1 ( bounded sum test ) a series of nonnegative terms converges if and only if it ' s partial sums are bounded above 定理2 (比較審斂法)設和都是正項級數,且。若級數收斂,則級數收斂;反之,若級數發散,則級數發散。