> 求解方程式系統

 繪線交會 對應的解題指令群 <legend xml:lang="zh_TW" /> <traces xml:lang="zh_TW"> <trace resultRef="55" xml:lang="zh_TW" num-of-points="500"> <traceStyle color="#FF00008B" symbol="none" line-weight="1" line-style="Solid" xml:lang="zh_TW">線條</traceStyle> </trace> <trace resultRef="56" xml:lang="zh_TW" num-of-points="500"> <traceStyle color="#FF000000" symbol="none" line-weight="1" line-style="Solid" xml:lang="zh_TW">線條</traceStyle> </trace> </traces> <graph-size width="230.4" height="230.4" xml:lang="zh_TW" /> <axes xml:lang="zh_TW"> <xAxis rank="1" legend-position="PlotBoundaryBottom" start="-21" end="10.5" xml:lang="zh_TW"> <axisLine position="origin" positionticmark="2" legendWidth="60.93" xml:lang="zh_TW" /> <axisGrid xml:lang="zh_TW"> <gridFrequency xml:lang="zh_TW">10</gridFrequency> <gridLabels display="true" xml:lang="zh_TW" /> <gridLines xml:lang="zh_TW" /> <tickMarks display="true" xml:lang="zh_TW" /> </axisGrid> <axisLabel xml:lang="zh_TW" /> <markers xml:lang="zh_TW" /> <plotEquations 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<real xml:lang="zh_TW">15</real> </apply> <apply xml:lang="zh_TW"> <pow xml:lang="zh_TW" /> <parens xml:lang="zh_TW"> <apply xml:lang="zh_TW"> <plus xml:lang="zh_TW" /> <id xml:space="preserve" xml:lang="zh_TW">x</id> <real xml:lang="zh_TW">4</real> </apply> </parens> <real xml:lang="zh_TW">2</real> </apply> </apply> </math> </region> <region id="" top="211.20000000000005" left="19.200000000000003" xml:lang="zh_TW" solve-block-category="solver"> <math resultRef="86" xml:lang="zh_TW"> <eval xml:lang="zh_TW" xmlns="http://schemas.mathsoft.com/math50"> <apply xml:lang="zh_TW"> <id labels="KEYWORD" xml:space="preserve" xml:lang="zh_TW">find</id> <sequence xml:lang="zh_TW"> <id labels="VARIABLE" xml:space="preserve" xml:lang="zh_TW" label-is-contextual="true">x</id> <id labels="SYSTEM" xml:space="preserve" xml:lang="zh_TW" label-is-contextual="true">y</id> </sequence> </apply> <unitOverride xml:lang="zh_TW"> <placeholder xml:lang="zh_TW" /> </unitOverride> </eval> </math> </region> </regions> </solveblock> </region>

find 無法進一步改善解，且仍未滿足所有條件約束，則求解器會停止並傳回錯誤訊息。當下列其中一個情況為真時，可能會發生此問題：

CTOL 的值太小。在解題指令群區域上方重新定義此工作表變數，而嘗試加大 CTOL 值。