微分方程数值解 向前差分.doc

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1、宋玉霞2008050216统数信科0802实验三__1:向前差分一、实验题目：二、实验要求：用向前差分格式求解一维抛物型偏微分方程三、程序运行结果：只取前面与后面的结果：其数值解为u=Columns1through81.00001.00251.00501.00751.01011.01261.01511.01771.10521.10791.11071.11351.11631.11901.12181.12441.22141.22451.22751.23061.23361.23651.23931.24171.34991.35321.35661.35991.36

2、291.36551.36721.36801.49181.49551.49911.50201.50361.50331.50051.49501.64871.65261.65511.65401.64761.63521.61731.59491.82211.82411.81631.79241.75381.70561.65251.59772.01381.99361.91641.80071.68111.56951.46931.38062.22551.98201.58021.31991.14011.00910.90930.83062.459600000002.71832

3、.72512.73192.73872.74562.75252.75942.7663Columns9through161.02021.02281.02531.02791.03051.03301.03561.03821.12701.12941.13161.13351.13511.13641.13741.13801.24371.24521.24611.24621.24571.24441.24241.23971.36751.36581.36271.35821.35261.34571.33791.32921.48701.47661.46411.44991.4343

4、1.41771.40021.38211.56931.54131.51191.48181.45131.42111.39121.36191.54331.49051.44001.39201.34671.30391.26361.22571.30221.23271.17091.11551.06581.02070.97980.94240.76660.71350.66840.62970.59600.56620.53980.5161000000002.77322.78012.78712.79412.80112.80812.81512.8222Columns385thro

5、ugh3922.61172.61822.62482.63142.63792.64452.65122.65782.88632.89352.90082.90802.91532.92262.92992.93733.18983.19783.20583.21383.22193.22993.23803.24613.52533.53413.54293.55183.56073.56963.57853.58753.89603.90583.91553.92533.93523.94503.95493.96484.30584.31654.32734.33824.34904.35

6、994.37084.38184.75864.77054.78254.79444.80644.81854.83054.84265.25915.27235.28555.29875.31205.32535.33865.35205.81235.82685.84145.85605.87075.88545.90015.91496.42366.43976.45586.47206.48826.50446.52076.53717.09937.11717.13497.15287.17077.18867.20667.2247Columns393through4002.6645

7、2.67112.67782.68452.69122.69802.70472.71152.94462.95202.95942.96682.97422.98172.98912.99663.25433.26243.27063.27873.28703.29523.30343.31173.59653.60553.61453.62353.63263.64173.65083.66003.97473.98473.99464.00464.01474.02474.03484.04494.39274.40374.41484.42584.43694.44804.45914.47

8、034.85474.86694.87914.89134.90354.91584.