A=sprand(10,10,0.1) A = (1,2) 0.6557 (9,2) 0.7577 (3,5) 0.8491 (10,5) 0.7431 (10,8) 0.3922 (7,9) 0.6787 (2,10) 0.0357 (6,10) 0.9340 (10,10) 0.6555 B=diag(rand(10,1)) B = Columns 1 through 4 0.1712 0 0 0 0 0.7060 0 0 0 0 0.0318 0 0 0 0 0.2769 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Columns 5 through 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0462 0 0 0 0 0.0971 0 0 0 0 0.8235 0 0 0 0 0.6948 0 0 0 0 0 0 0 0 Columns 9 through 10 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.3171 0 0 0.9502 A+B ans = Columns 1 through 4 0.1712 0.6557 0 0 0 0.7060 0 0 0 0 0.0318 0 0 0 0 0.2769 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.7577 0 0 0 0 0 0 Columns 5 through 8 0 0 0 0 0 0 0 0 0.8491 0 0 0 0 0 0 0 0.0462 0 0 0 0 0.0971 0 0 0 0 0.8235 0 0 0 0 0.6948 0 0 0 0 0.7431 0 0 0.3922 Columns 9 through 10 0 0 0 0.0357 0 0 0 0 0 0 0 0.9340 0.6787 0 0 0 0.3171 0 0 1.6057 C=spdiags(rand(10,1),0,10,10) C = (1,1) 0.0344 (2,2) 0.4387 (3,3) 0.3816 (4,4) 0.7655 (5,5) 0.7952 (6,6) 0.1869 (7,7) 0.4898 (8,8) 0.4456 (9,9) 0.6463 (10,10) 0.7094 A+C ans = (1,1) 0.0344 (1,2) 0.6557 (2,2) 0.4387 (9,2) 0.7577 (3,3) 0.3816 (4,4) 0.7655 (3,5) 0.8491 (5,5) 0.7952 (10,5) 0.7431 (6,6) 0.1869 (7,7) 0.4898 (8,8) 0.4456 (10,8) 0.3922 (7,9) 0.6787 (9,9) 0.6463 (2,10) 0.0357 (6,10) 0.9340 (10,10) 1.3648 i ans = 0 + 1.0000i for i = 1:10 end i i = 10 1i ans = 0 + 1.0000i 1i=2 ??? 1i=2 | Error: The expression to the left of the equals sign is not a valid target for an assignment. % Modify expression to add input arguments. % Example: % a = [1 2 3; 4 5 6]; % foo(a); fourier % Modify expression to add input arguments. % Example: % a = [1 2 3; 4 5 6]; % foo(a); fourier urif urif = 0.5611 0.5648 0.5685 0.5722 0.5759 0.5797 0.5836 0.5874 0.5913 0.5952 0.5991 0.6030 0.6069 0.6109 0.6149 0.6189 0.6228 0.6268 0.6308 0.6348 0.6388 0.6427 0.6467 0.6506 0.6546 0.6584 0.6623 0.6662 0.6700 0.6737 0.6775 0.6811 0.6848 0.6884 0.6919 0.6953 0.6987 0.7021 0.7053 0.7085 0.7116 0.7146 0.7175 0.7203 0.7230 0.7256 0.7281 0.7305 0.7328 0.7350 0.7370 0.7389 0.7407 0.7424 0.7439 0.7453 0.7465 0.7476 0.7486 0.7494 0.7501 0.7506 0.7510 0.7512 0.7513 0.7512 0.7510 0.7506 0.7501 0.7494 0.7486 0.7476 0.7465 0.7453 0.7439 0.7424 0.7407 0.7389 0.7370 0.7350 0.7328 0.7305 0.7281 0.7256 0.7230 0.7203 0.7175 0.7146 0.7116 0.7085 0.7053 0.7021 0.6987 0.6953 0.6919 0.6884 0.6848 0.6811 0.6775 0.6737 0.6700 0.6662 0.6623 0.6584 0.6546 0.6506 0.6467 0.6427 0.6388 0.6348 0.6308 0.6268 0.6228 0.6189 0.6149 0.6109 0.6069 0.6030 0.5991 0.5952 0.5913 0.5874 0.5836 0.5797 0.5759 0.5722 0.5685 0.5648 0.5611 0.5575 0.5539 0.5504 0.5469 0.5434 0.5400 0.5366 0.5333 0.5300 0.5268 0.5236 0.5205 0.5174 0.5143 0.5114 0.5084 0.5056 0.5027 0.5000 0.4973 0.4946 0.4920 0.4895 0.4870 0.4846 0.4822 0.4799 0.4776 0.4754 0.4733 0.4712 0.4692 0.4673 0.4654 0.4635 0.4618 0.4601 0.4584 0.4568 0.4553 0.4538 0.4524 0.4511 0.4498 0.4486 0.4474 0.4463 0.4453 0.4443 0.4434 0.4426 0.4418 0.4411 0.4404 0.4398 0.4393 0.4388 0.4384 0.4381 0.4378 0.4376 0.4374 0.4373 0.4373 0.4373 0.4374 0.4376 0.4378 0.4381 0.4384 0.4388 0.4393 0.4398 0.4404 0.4411 0.4418 0.4426 0.4434 0.4443 0.4453 0.4463 0.4474 0.4486 0.4498 0.4511 0.4524 0.4538 0.4553 0.4568 0.4584 0.4601 0.4618 0.4635 0.4654 0.4673 0.4692 0.4712 0.4733 0.4754 0.4776 0.4799 0.4822 0.4846 0.4870 0.4895 0.4920 0.4946 0.4973 0.5000 0.5027 0.5056 0.5084 0.5114 0.5143 0.5174 0.5205 0.5236 0.5268 0.5300 0.5333 0.5366 0.5400 0.5434 0.5469 0.5504 0.5539 0.5575 % Modify expression to add input arguments. % Example: % a = [1 2 3; 4 5 6]; % foo(a); fourier % Modify expression to add input arguments. % Example: % a = [1 2 3; 4 5 6]; % foo(a); fourier uhat uhat = 0 0.0000 - 0.0000i -0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 - 0.0000i 0.0000 - 0.0000i 0.0000 - 0.0000i -0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 - 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i -0.0000 - 0.0000i 0.0000 + 0.0000i 0.0000 - 0.0000i 0.0000 + 0.0000i -0.0000 + 0.0000i -0.0000 + 0.0000i -0.0000 - 0.0000i -0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 - 0.0000i -0.0000 - 0.0000i -0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 - 0.0000i -0.0000 + 0.0000i -0.0000 + 0.0000i 0.0000 0.0000 - 0.0000i 0.0000 + 0.0000i -0.0000 - 0.0000i -0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i -0.0000 - 0.0000i -0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i -0.0000 - 0.0000i -0.0000 + 0.0000i -0.0000 + 0.0000i 0.0000 - 0.0000i -0.0000 - 0.0000i -0.0000 + 0.0000i -0.0000 + 0.0000i 0.0000 - 0.0000i -0.0000 - 0.0000i -0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i -0.0000 - 0.0000i -0.0000 + 0.0000i -0.0000 + 0.0001i 0.0004 + 0.0000i -0.0000 - 0.0028i -0.0208 + 0.0000i 0.0000 + 0.1939i 1.4472 0.0000 - 0.1939i -0.0208 - 0.0000i -0.0000 + 0.0028i 0.0004 - 0.0000i -0.0000 - 0.0001i -0.0000 - 0.0000i -0.0000 + 0.0000i 0.0000 - 0.0000i 0.0000 - 0.0000i -0.0000 - 0.0000i -0.0000 + 0.0000i 0.0000 + 0.0000i -0.0000 - 0.0000i -0.0000 - 0.0000i -0.0000 + 0.0000i 0.0000 + 0.0000i -0.0000 - 0.0000i -0.0000 - 0.0000i -0.0000 + 0.0000i 0.0000 - 0.0000i 0.0000 - 0.0000i -0.0000 - 0.0000i -0.0000 + 0.0000i 0.0000 - 0.0000i 0.0000 - 0.0000i -0.0000 - 0.0000i -0.0000 + 0.0000i 0.0000 - 0.0000i 0.0000 + 0.0000i 0.0000 -0.0000 - 0.0000i -0.0000 - 0.0000i 0.0000 + 0.0000i 0.0000 - 0.0000i 0.0000 - 0.0000i 0.0000 - 0.0000i -0.0000 - 0.0000i -0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 - 0.0000i -0.0000 - 0.0000i -0.0000 + 0.0000i -0.0000 - 0.0000i -0.0000 - 0.0000i 0.0000 - 0.0000i 0.0000 + 0.0000i 0.0000 - 0.0000i -0.0000 + 0.0000i 0.0000 - 0.0000i 0.0000 - 0.0000i 0.0000 + 0.0000i 0.0000 - 0.0000i -0.0000 - 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 - 0.0000i -0.0000 - 0.0000i 0.0000 + 0.0000i format long e uhat uhat = 0 7.326268588787438e-21 - 1.065639067459991e-20i -2.756727513295460e-21 + 6.891818783238649e-22i 1.097111282803293e-20 + 4.994978198128813e-21i 4.990087627917975e-21 - 2.356430268739044e-21i 1.556730278589592e-21 - 5.029436284674066e-21i 1.161486391317823e-20 - 7.173886534610086e-22i -2.874047756101349e-21 + 5.557889323072043e-21i 4.840103640486451e-21 + 3.645357420978725e-21i 5.869771307050375e-21 - 1.547545496311181e-21i 1.386940135709354e-21 + 2.334271297937829e-21i 2.264448541240750e-21 + 1.968921712856480e-21i -3.931828747899993e-22 - 1.258458466875975e-21i 3.310317500931882e-21 + 9.127051935042858e-21i 1.117949343227193e-20 - 1.964640224104393e-22i 1.295043819119266e-20 + 1.733470555955566e-20i -1.118932037590666e-20 + 3.625864926953720e-21i -8.361284805070324e-21 + 1.674477997697283e-21i -7.948285909563409e-22 - 7.043714761369842e-21i -7.711952669177784e-21 + 4.714396856083896e-21i 1.086209081023635e-20 + 6.281198742678982e-21i 4.265192358864313e-21 - 6.806266782673492e-21i -1.190140657296869e-20 - 4.433336620338736e-21i -6.781505554483777e-21 + 5.399875868195344e-22i 1.273174790856340e-20 + 7.364533052270201e-21i 3.516013744642608e-21 + 5.223758198637283e-22i 8.290852316890043e-21 + 1.219588724531568e-20i 1.405252190682524e-20 - 1.892897855272184e-20i -1.049592979842909e-20 + 9.487144192432057e-21i -1.975065062664626e-20 + 1.775841712548309e-20i 8.236526599102530e-20 4.459964616070326e-20 - 1.744868040099415e-21i 2.027777545977291e-19 + 1.238767235317562e-20i -1.921461308329690e-21 - 7.255813460758138e-19i -2.897625455224309e-18 + 8.853474107637984e-21i 1.680956883566633e-21 + 1.161202128734974e-17i 4.707913838792720e-17 + 8.609981220267263e-21i -1.707401451986126e-20 - 1.911650293994800e-16i -7.797115756189428e-16 + 1.571473786840492e-20i 6.846307290267429e-22 + 3.193095508981202e-15i 1.313512850768843e-14 + 1.513778349860819e-20i -3.023255147780652e-20 - 5.430219738859461e-14i -2.257304155623071e-13 + 4.737540828584583e-20i -1.063585956930463e-20 + 9.441107412858436e-13i 3.975899684671139e-12 - 8.766878282995597e-21i -1.160955211298953e-19 - 1.687359641846930e-11i -7.224327335464607e-11 + 4.497702409541280e-20i -1.575063315258734e-20 + 3.124368621659087e-10i 1.367069941001875e-09 - 4.011377555788398e-21i -4.577171278561698e-20 - 6.063822124587085e-09i -2.733584213278410e-08 + 1.388843947524191e-19i 2.008475064386251e-19 + 1.256572429565012e-07i 5.916100866805851e-07 + 9.407394764891039e-21i -2.923330502088473e-19 - 2.870294572290310e-06i -1.447579077901871e-05 + 2.646689061681957e-19i -1.310066826518159e-19 + 7.688085794924471e-05i 4.388238216410446e-04 + 7.247178189249392e-19i -8.696613827099271e-20 - 2.784111756491076e-03i -2.078089305834904e-02 + 4.174374637007650e-18i 5.797742551399514e-18 + 1.938883718010350e-01i 1.447202509116535e+00 5.797742551399514e-18 - 1.938883718010350e-01i -2.078089305834904e-02 - 4.174374637007650e-18i -8.696613827099271e-20 + 2.784111756491076e-03i 4.388238216410446e-04 - 7.247178189249392e-19i -1.310066826518159e-19 - 7.688085794924471e-05i -1.447579077901871e-05 - 2.646689061681957e-19i -2.923330502088473e-19 + 2.870294572290310e-06i 5.916100866805851e-07 - 9.407394764891039e-21i 2.008475064386251e-19 - 1.256572429565012e-07i -2.733584213278410e-08 - 1.388843947524191e-19i -4.577171278561698e-20 + 6.063822124587085e-09i 1.367069941001875e-09 + 4.011377555788398e-21i -1.575063315258734e-20 - 3.124368621659087e-10i -7.224327335464607e-11 - 4.497702409541280e-20i -1.160955211298953e-19 + 1.687359641846930e-11i 3.975899684671139e-12 + 8.766878282995597e-21i -1.063585956930463e-20 - 9.441107412858436e-13i -2.257304155623071e-13 - 4.737540828584583e-20i -3.023255147780652e-20 + 5.430219738859461e-14i 1.313512850768843e-14 - 1.513778349860819e-20i 6.846307290267429e-22 - 3.193095508981202e-15i -7.797115756189428e-16 - 1.571473786840492e-20i -1.707401451986126e-20 + 1.911650293994800e-16i 4.707913838792720e-17 - 8.609981220267263e-21i 1.680956883566633e-21 - 1.161202128734974e-17i -2.897625455224309e-18 - 8.853474107637984e-21i -1.921461308329690e-21 + 7.255813460758138e-19i 2.027777545977291e-19 - 1.238767235317562e-20i 4.459964616070326e-20 + 1.744868040099415e-21i 8.236526599102530e-20 -1.975065062664626e-20 - 1.775841712548309e-20i -1.049592979842909e-20 - 9.487144192432057e-21i 1.405252190682524e-20 + 1.892897855272184e-20i 8.290852316890043e-21 - 1.219588724531568e-20i 3.516013744642608e-21 - 5.223758198637283e-22i 1.273174790856340e-20 - 7.364533052270201e-21i -6.781505554483777e-21 - 5.399875868195344e-22i -1.190140657296869e-20 + 4.433336620338736e-21i 4.265192358864313e-21 + 6.806266782673492e-21i 1.086209081023635e-20 - 6.281198742678982e-21i -7.711952669177784e-21 - 4.714396856083896e-21i -7.948285909563409e-22 + 7.043714761369842e-21i -8.361284805070324e-21 - 1.674477997697283e-21i -1.118932037590666e-20 - 3.625864926953720e-21i 1.295043819119266e-20 - 1.733470555955566e-20i 1.117949343227193e-20 + 1.964640224104393e-22i 3.310317500931882e-21 - 9.127051935042858e-21i -3.931828747899993e-22 + 1.258458466875975e-21i 2.264448541240750e-21 - 1.968921712856480e-21i 1.386940135709354e-21 - 2.334271297937829e-21i 5.869771307050375e-21 + 1.547545496311181e-21i 4.840103640486451e-21 - 3.645357420978725e-21i -2.874047756101349e-21 - 5.557889323072043e-21i 1.161486391317823e-20 + 7.173886534610086e-22i 1.556730278589592e-21 + 5.029436284674066e-21i 4.990087627917975e-21 + 2.356430268739044e-21i 1.097111282803293e-20 - 4.994978198128813e-21i -2.756727513295460e-21 - 6.891818783238649e-22i 7.326268588787438e-21 + 1.065639067459991e-20i u u = 5.611085474627375e-01 5.689562505047076e-01 5.769560409802570e-01 5.850910845257953e-01 5.933429542076856e-01 6.016915505448214e-01 6.101150289817008e-01 6.185897376405844e-01 6.270901686255382e-01 6.355889266082098e-01 6.440567188757902e-01 6.524623714389458e-01 6.607728761459020e-01 6.689534739831223e-01 6.769677798082180e-01 6.847779535932903e-01 6.923449227873673e-01 6.996286595643696e-01 7.065885154440253e-01 7.131836140097535e-01 7.193733001815661e-01 7.251176417584986e-01 7.303779758060013e-01 7.351174890783108e-01 7.393018182540747e-01 7.428996526094570e-01 7.458833191847902e-01 7.482293288572848e-01 7.499188613174423e-01 7.509381679794482e-01 7.512788744222796e-01 7.509381679794482e-01 7.499188613174423e-01 7.482293288572849e-01 7.458833191847902e-01 7.428996526094569e-01 7.393018182540747e-01 7.351174890783109e-01 7.303779758060013e-01 7.251176417584986e-01 7.193733001815661e-01 7.131836140097533e-01 7.065885154440253e-01 6.996286595643696e-01 6.923449227873671e-01 6.847779535932903e-01 6.769677798082179e-01 6.689534739831222e-01 6.607728761459020e-01 6.524623714389458e-01 6.440567188757902e-01 6.355889266082098e-01 6.270901686255382e-01 6.185897376405843e-01 6.101150289817008e-01 6.016915505448213e-01 5.933429542076856e-01 5.850910845257952e-01 5.769560409802570e-01 5.689562505047076e-01 5.611085474627375e-01 5.534282586656600e-01 5.459292914051066e-01 5.386242228216189e-01 5.315243892377617e-01 5.246399743529212e-01 5.179800954287997e-01 5.115528867924025e-01 5.053655801502018e-01 4.994245813464835e-01 4.937355433139077e-01 4.883034350582272e-01 4.831326065947755e-01 4.782268498144442e-01 4.735894553037623e-01 4.692232651794652e-01 4.651307220244090e-01 4.613139140304127e-01 4.577746164659713e-01 4.545143295938520e-01 4.515343131664213e-01 4.488356176258674e-01 4.464191121330183e-01 4.442855095427488e-01 4.424353884364590e-01 4.408692123132152e-01 4.395873460311213e-01 4.385900695796385e-01 4.378775892520436e-01 4.374500462752147e-01 4.373075229415517e-01 4.374500462752147e-01 4.378775892520436e-01 4.385900695796386e-01 4.395873460311213e-01 4.408692123132151e-01 4.424353884364590e-01 4.442855095427489e-01 4.464191121330183e-01 4.488356176258673e-01 4.515343131664213e-01 4.545143295938519e-01 4.577746164659713e-01 4.613139140304128e-01 4.651307220244089e-01 4.692232651794652e-01 4.735894553037622e-01 4.782268498144442e-01 4.831326065947755e-01 4.883034350582272e-01 4.937355433139077e-01 4.994245813464835e-01 5.053655801502018e-01 5.115528867924025e-01 5.179800954287997e-01 5.246399743529212e-01 5.315243892377617e-01 5.386242228216188e-01 5.459292914051066e-01 5.534282586656600e-01 diary off