急！！关于数据拟合的一个小程序，谁能帮我看看哪错了？

xintu9027

%设计变量
t=[0.0022 0.0022 0.0022 0.0022 0.0022 0.0022 0.0023 0.0023 0.0023 0.0023 0.0023 0.0023 0.0024 0.0024 0.0024 0.0024 0.0024 0.0024 0.0025 0.0025 0.0025 0.0025 0.0025 0.0025 0.0026 0.0026 0.0026 0.0026 0.0026 0.0026 0.0027 0.0027 0.0027 0.0027 0.0027 0.0027]';
l=[0.1200 0.1300 0.1400 0.1500 0.1600 0.1700 0.1200 0.1300 0.1400 0.1500 0.1600 0.1700 0.1200 0.1300 0.1400 0.1500 0.1600 0.1700 0.1200 0.1300 0.1400 0.1500 0.1600 0.1700 0.1200 0.1300 0.1400 0.1500 0.1600 0.1700 0.1200 0.1300 0.1400 0.1500 0.1600 0.1700]';
a=[1.6000 1.6000 1.6000 1.7000 1.7000 1.7000 1.6000 1.6000 1.6000 1.7000 1.7000 1.7000 1.6000 1.6000 1.6000 1.7000 1.7000 1.7000 1.6000 1.6000 1.6000 1.7000 1.7000 1.7000 1.7000 1.7000 1.7000 1.8000 1.8000 1.8000 1.7000 1.7000 1.7000 1.8000 1.8000 1.8000]';
b=[1.1000 1.2000 1.3000 1.1000 1.2000 1.3000 1.1000 1.2000 1.3000 1.1000 1.2000 1.3000 1.1000 1.2000 1.3000 1.1000 1.2000 1.3000 1.1000 1.2000 1.3000 1.1000 1.2000 1.3000 1.1000 1.2000 1.3000 1.1000 1.2000 1.3000 1.1000 1.2000 1.3000 1.1000 1.2000 1.3000]';
响应值
pcrg=[2.3151 2.3452 2.3721 2.3157 2.3662 2.4118 2.3587 2.3896 2.4172 2.3572 2.4088 2.4554 2.4017 2.4334 2.4616 2.3980 2.4506 2.4982 2.4440 2.4764 2.5053 2.4381 2.4918 2.5402 2.7933 2.8339 2.8699 2.7731 2.8359 2.8929 2.8384 2.8799 2.9166 2.8159 2.8797 2.9377]';
O2=[-202.9898 -201.7412 -199.7662 -197.1919 -195.1847 -193.4136 -193.8554 -193.0568 -191.4518 -189.1154 -187.2725 -185.5763 -185.3962 -184.9974 -183.7346 -181.6335 -179.9613 -178.3569 -177.5454 -177.5001 -176.5516 -174.6796 -173.1797 -171.6785 -170.4459 -170.7064 -170.0215 -168.3391 -166.9764 -165.5550 -163.6328 -164.1731 -163.7539 -162.2846 -161.0899 -159.7837]';
Or=[-49.8852 -47.0071 -44.4500 -48.0079 -45.1424 -42.5878 -50.0945 -47.2516 -44.7319 -48.2422 -45.4268 -42.9093 -50.2372 -47.4295 -44.9476 -48.4041 -45.6416 -43.1648 -50.3219 -47.5492 -45.1051 -48.5027 -45.7949 -43.3615 -48.4412 -45.7528 -43.3944 -46.7696 -44.1662 -41.8268 -48.4717 -45.8135 -43.4874 -46.8001 -44.2480 -41.9509]';
O1eq=[-256.1320 -261.5469 -266.7249 -260.0686 -265.8668 -270.9702 -240.5716 -245.7553 -250.7594 -244.1609 -249.8619 -254.9104 -226.4374 -231.4038 -236.2306 -229.6914 -235.2801 -240.2606 -213.5507 -218.3158 -222.9666 -216.4888 -221.9537 -226.8546 -205.5080 -209.9767 -214.3569 -207.8659 -213.1066 -217.8265 -194.6122 -198.9206 -203.1420 -196.7098 -201.8209 -206.4522]';
Z=[ones(36,1),t,t.^2,l,l.^2,a,a^2,b,b.^2,t.*l,t.*a,t.*b,t.*a.*b,l.*a,l.*b,l.*a.*b,a.*b,l.*t.*a.*b];
c=Z\pcrg
d=Z\O2
e=Z\Or
f=Z\O1eq


运行后，提示：
??? Error using ==> mpower
Matrix must be square.
Error in ==> xiangyingmian0621 at 25
Z=[ones(36,1),t,t.^2,l,l.^2,a,a^2,b,b.^2,t.*l,t.*a,t.*b,t.*a.*b,l.*a,l.*b,l.*a.*b,a.*b,l.*t.*a.*b];
请问我哪里错了，应该如何改？

hy15928088780

你这个理解起来还真有点难度。