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kingswordscu銅蟲 (正式寫手)
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[交流]
【求助】關(guān)于matlb中的fzero求教 已有6人參與
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我是個(gè)新手,對(duì)這個(gè)函數(shù)理解不清楚,誰能深刻揭示一下這個(gè)函數(shù)的作用呢?為什么我求1.57左右的零點(diǎn)和1.58左右的零點(diǎn)不一樣呢,如下: y=fzero('sin',1.57) y = 1.5977e-021 y=fzero('sin',1.58) y = -1.3952e-021 搞不懂 |

新蟲 (初入文壇)
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X = FZERO(FUN,X0) tries to find a zero of the function FUN near X0, if X0 is a scalar. It first finds an interval containing X0 where the function values of the interval endpoints differ in sign, then searches that interval for a zero. FUN is a function handle. FUN accepts real scalar input X and returns a real scalar function value F, evaluated at X. The value X returned by FZERO is near a point where FUN changes sign (if FUN is continuous), or NaN if the search fails. |

銅蟲 (正式寫手)

鐵桿木蟲 (著名寫手)
方丈大師
金蟲 (正式寫手)

新蟲 (初入文壇)
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