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悠悅小牛奶新蟲 (初入文壇)
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[交流]
【求助】請(qǐng)高手解答 畫圖問題 已有3人參與
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| 請(qǐng)問如何實(shí)現(xiàn) 用隨機(jī)的頂點(diǎn)坐標(biāo)值畫出5個(gè)黃色三角形 |
至尊木蟲 (正式寫手)
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以下為幫助文件中的說明: RAND Uniformly distributed random numbers. 標(biāo)準(zhǔn)化分布的隨機(jī)數(shù) RAND(N) is an N-by-N matrix with random entries, chosen from a uniform distribution on the interval (0.0,1.0). rand(N)為隨機(jī)生成一個(gè)在【0,1】之間的n維隨機(jī)矩陣。 RAND(M,N) and RAND([M,N]) are M-by-N matrices with random entries.隨機(jī)生成一個(gè)在【0,1】之間的m,n維隨機(jī)矩陣。 RAND(M,N,P,...) or RAND([M,N,P,...]) generate random arrays. RAND with no arguments is a scalar whose value changes each time it is referenced. RAND(SIZE(A)) is the same size as A. RAND produces pseudo-random numbers. The sequence of numbers generated is determined by the state of the generator. Since MATLAB resets the state at start-up, the sequence of numbers generated will be the same unless the state is changed. matlab的隨機(jī)數(shù)算法是通過一個(gè)“種子”遞推出來的, 種子在程序初始的時(shí)候都一樣。 S = RAND('state') is a 35-element vector containing the current state of the uniform generator. RAND('state',S) resets the state to S. RAND('state',0) resets the generator to its initial state. 重新恢復(fù)初始狀態(tài),剛運(yùn)行matlab時(shí)候的狀態(tài) RAND('state',J), for integer J, resets the generator to its J-th state. 安排種子產(chǎn)生第j個(gè)狀態(tài) RAND('state',sum(100*clock)) resets it to a different state each time.根據(jù)時(shí)間產(chǎn)生不同的隨機(jī)數(shù) |

至尊木蟲 (正式寫手)
新蟲 (初入文壇)
新蟲 (初入文壇)
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