How to create a matrix using two arrays (x & y) and a formula that uses x & y

x  = [4.0:-.05:3.7] ;
y = [9;15;21;27;33;39;45];
z = 1.3473*152./(152+y)+(5-x).*y./(152+y)
z = 7×7
    1.3279    1.3307    1.3335    1.3363    1.3391    1.3419    1.3447
    1.3161    1.3206    1.3251    1.3296    1.3341    1.3386    1.3431
    1.3051    1.3112    1.3173    1.3234    1.3294    1.3355    1.3416
    1.2949    1.3025    1.3100    1.3175    1.3251    1.3326    1.3402
    1.2853    1.2943    1.3032    1.3121    1.3210    1.3299    1.3389
    1.2764    1.2866    1.2968    1.3070    1.3172    1.3274    1.3376
    1.2680    1.2794    1.2908    1.3022    1.3137    1.3251    1.3365

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Thomas Pruchinski 2021-10-4

This worked easy.Thanks.

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Answer 2

the cyclist 2021-10-3

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1465949-how-to-create-a-matrix-using-two-arrays-x-y-and-a-formula-that-uses-x-y#answer_800739

Use the meshgrid function to create 2-dimensional grids from the x and y vectors. The first example in the documentation is very similar to what you want to do.

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the cyclist 2021-10-4

在 MATLAB Online 中打开

x  = [4.0:-.05:3.7] ;
y = [9;15;21;27;33;39;45];
[xx,yy] = meshgrid(x,y);
z = 1.3473*152./(152+yy)+(5-xx).*yy./(152+yy)
z = 7×7
    1.3279    1.3307    1.3335    1.3363    1.3391    1.3419    1.3447
    1.3161    1.3206    1.3251    1.3296    1.3341    1.3386    1.3431
    1.3051    1.3112    1.3173    1.3234    1.3294    1.3355    1.3416
    1.2949    1.3025    1.3100    1.3175    1.3251    1.3326    1.3402
    1.2853    1.2943    1.3032    1.3121    1.3210    1.3299    1.3389
    1.2764    1.2866    1.2968    1.3070    1.3172    1.3274    1.3376
    1.2680    1.2794    1.2908    1.3022    1.3137    1.3251    1.3365