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nqf1987新蟲 (初入文壇)
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[求助]
初學(xué)matlab 求解方程 大家?guī)蛶兔Π。!?
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求解 方程 0.022*ρ^2*(sin(θ))^2+x*cos(θ)-25.63=0 其中θ=0*pi/180:1*pi/180:90*pi/180 求出各個(gè)θ所對(duì)應(yīng)的ρ值。 大家?guī)蛶兔。。非常感謝。。。 |
鐵桿木蟲 (職業(yè)作家)
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用1stOpt求解: 循環(huán)常數(shù) b p 0 25.63 0.0174532925199433 25.6295018661051 0.0349065850398866 25.6280127761908 0.0523598775598299 25.6255486229214 0.0698131700797732 25.6221357527257 0.0872664625997165 25.6178107565949 0.10471975511966 25.6126201827428 0.122173047639603 25.606620176457 0.139626340159546 25.5998760537113 0.15707963267949 25.5924618161425 0.174532925199433 25.5844596158156 0.191986217719376 25.5759591787806 0.20943951023932 25.5670571967639 0.226892802759263 25.5578566964412 0.244346095279206 25.5484663956185 0.261799387799149 25.5390000553237 0.279252680319093 25.5295758363094 0.296705972839036 25.5203156678193 0.314159265358979 25.5113446357032 0.331612557878923 25.502790396119 0.349065850398866 25.4947826201588 0.366519142918809 25.4874524738165 0.383972435438753 25.4809321367966 0.401425727958696 25.4753543627818 0.418879020478639 25.4708520829346 0.436332312998583 25.4675580536368 0.453785605518526 25.4656045487722 0.471238898038469 25.465123096236 0.488692190558413 25.4662442578285 0.506145483078356 25.4690974512392 0.523598775598299 25.47381081247 0.541052068118242 25.480511096763 0.558505360638186 25.4893236158928 0.575958653158129 25.5003722095451 0.593411945678072 25.513779248425 0.610865238198016 25.5296656667175 0.628318530717959 25.5481510215412 0.645771823237902 25.5693535770983 0.663225115757846 25.593390411317 0.680678408277789 25.6203775428959 0.698131700797732 25.6504300768 0.715584993317676 25.6836623664044 0.733038285837619 25.7201881906438 0.750491578357562 25.7601209446892 0.767944870877506 25.8035738428435 0.785398163397449 25.8506601325112 0.802851455917392 25.9014933182683 0.820304748437336 25.9561873952148 0.837758040957279 26.0148570909522 0.855211333477222 26.0776181156793 0.872664625997166 26.144587420044 0.890117918517109 26.2158834605277 0.907571211037052 26.2916264722716 0.925024503556996 26.3719387493826 0.942477796076939 26.456944932876 0.959931088596882 26.546772306529 0.977384381116825 26.6415511010328 0.994837673636769 26.7414148069388 1.01229096615671 26.8465004969999 1.02974425867666 26.9569491586134 1.0471975511966 27.0729060371753 1.06465084371654 27.1945209912581 1.08210413623649 27.3219488606291 1.09955742875643 27.4553498482322 1.11701072127637 27.594889917367 1.13446401379632 27.7407412054089 1.15191730631626 27.8930824555365 1.1693705988362 28.0520994680541 1.18682389135615 28.2179855730331 1.20427718387609 28.3909421261319 1.22173047639603 28.5711790296149 1.23918376891598 28.7589152807434 1.25663706143592 28.9543795498974 1.27409035395586 29.1578107909759 1.29154364647581 29.3694588868302 1.30899693899575 29.589585332717 1.32645023151569 29.8184639610052 1.34390352403564 30.0563817106436 1.36135681655558 30.3036394451968 1.37881010907552 30.5605528235889 1.39626340159547 30.8274532280518 1.41371669411541 31.1046887541798 1.43116998663535 31.3926252684319 1.4486232791553 31.691647538906 1.46607657167524 32.0021604457538 1.48352986419518 32.3245902781956 1.50098315671513 32.6593861257564 1.51843644923507 33.0070213720728 1.53588974175501 33.3679953004398 1.55334303427496 33.7428348211578 1.5707963267949 34.1320963317521 |
榮譽(yù)版主 (著名寫手)
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專家經(jīng)驗(yàn): +4 |
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>> syms p x >> pp=solve('0.022*p^2*(sin(x))^2+p*cos(x)-25.63=0 ','p') pp = -(0.00000000000000000000000000000025*(90909090909090909090909090909091.0*cos(x) - 90909090909090909090909090909091.0*(cos(x)^2 + 2.25544*sin(x)^2)^(1/2)))/sin(x)^2 -(0.00000000000000000000000000000025*(90909090909090909090909090909091.0*cos(x) + 90909090909090909090909090909091.0*(cos(x)^2 + 2.25544*sin(x)^2)^(1/2)))/sin(x)^2 >> x=0*pi/180:1*pi/180:90*pi/180; >> p1=@(x)eval(pp(1)) p1 = @(x)eval(pp(1)) >> pp1=feval(p1,x) pp1 = Columns 1 through 5 NaN 25.6295 25.6280 25.6255 25.6221 Columns 6 through 10 25.6178 25.6126 25.6066 25.5999 25.5925 Columns 11 through 15 25.5845 25.5760 25.5671 25.5579 25.5485 Columns 16 through 20 25.5390 25.5296 25.5203 25.5113 25.5028 Columns 21 through 25 25.4948 25.4875 25.4809 25.4754 25.4709 Columns 26 through 30 25.4676 25.4656 25.4651 25.4662 25.4691 Columns 31 through 35 25.4738 25.4805 25.4893 25.5004 25.5138 Columns 36 through 40 25.5297 25.5482 25.5694 25.5934 25.6204 Columns 41 through 45 25.6504 25.6837 25.7202 25.7601 25.8036 Columns 46 through 50 25.8507 25.9015 25.9562 26.0149 26.0776 Columns 51 through 55 26.1446 26.2159 26.2916 26.3719 26.4569 Columns 56 through 60 26.5468 26.6416 26.7414 26.8465 26.9569 Columns 61 through 65 27.0729 27.1945 27.3219 27.4553 27.5949 Columns 66 through 70 27.7407 27.8931 28.0521 28.2180 28.3909 Columns 71 through 75 28.5712 28.7589 28.9544 29.1578 29.3695 Columns 76 through 80 29.5896 29.8185 30.0564 30.3036 30.5606 Columns 81 through 85 30.8275 31.1047 31.3926 31.6916 32.0022 Columns 86 through 90 32.3246 32.6594 33.0070 33.3680 33.7428 Column 91 34.1321 >> p2=@(x)eval(pp(2)) p2 = @(x)eval(pp(2)) >> pp2=feval(p2,x) pp2 = 1.0e+005 * Columns 1 through 5 -Inf -1.4924 -0.3732 -0.1660 -0.0934 Columns 6 through 10 -0.0599 -0.0416 -0.0306 -0.0235 -0.0186 Columns 11 through 15 -0.0151 -0.0125 -0.0105 -0.0090 -0.0078 Columns 16 through 20 -0.0068 -0.0060 -0.0053 -0.0048 -0.0043 Columns 21 through 25 -0.0039 -0.0036 -0.0033 -0.0030 -0.0028 Columns 26 through 30 -0.0026 -0.0024 -0.0022 -0.0021 -0.0019 Columns 31 through 35 -0.0018 -0.0017 -0.0016 -0.0015 -0.0015 Columns 36 through 40 -0.0014 -0.0013 -0.0013 -0.0012 -0.0011 Columns 41 through 45 -0.0011 -0.0011 -0.0010 -0.0010 -0.0009 Columns 46 through 50 -0.0009 -0.0009 -0.0008 -0.0008 -0.0008 Columns 51 through 55 -0.0008 -0.0007 -0.0007 -0.0007 -0.0007 Columns 56 through 60 -0.0007 -0.0006 -0.0006 -0.0006 -0.0006 Columns 61 through 65 -0.0006 -0.0006 -0.0005 -0.0005 -0.0005 Columns 66 through 70 -0.0005 -0.0005 -0.0005 -0.0005 -0.0005 Columns 71 through 75 -0.0005 -0.0005 -0.0004 -0.0004 -0.0004 Columns 76 through 80 -0.0004 -0.0004 -0.0004 -0.0004 -0.0004 Columns 81 through 85 -0.0004 -0.0004 -0.0004 -0.0004 -0.0004 Columns 86 through 90 -0.0004 -0.0004 -0.0004 -0.0003 -0.0003 Column 91 -0.0003 >> |

鐵桿木蟲 (職業(yè)作家)
新蟲 (初入文壇)
新蟲 (初入文壇)
新蟲 (初入文壇)
新蟲 (初入文壇)
新蟲 (初入文壇)
新蟲 (初入文壇)
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