how to apply a equation to specific row ranges of a vector?

1 vue (au cours des 30 derniers jours)
Philippe Corner
Philippe Corner le 27 Déc 2018
Modifié(e) : madhan ravi le 28 Déc 2018
If I have two vectors vp and vs, and I want to obtain a vector E which corresponds to this formula:
E = (d*(vs.^2).*(3*(vp.^2))./(vp.^2))./10000;
How could I obtain vector E varying d values with
d1 = 1; %for 1-3 rows
d2 = 2; %for 4-8 rows
d3 = 3; %for 9-10 rows
and obtain
E = [7.66525677840456
35.4506940715996
51.0153087814661
515.455370763582
678.584571443203
699.618989835563
864.000069120001
864.000069120001
1296.00010368000
1296.00010368000];
%%
vp = [340.216815000000;570.718050000000;769.256473000000;1176.42951000000;1632.88855600000;2099.99990500000;2099.99990500000;2099.99990500000;2099.99990500000;2099.99990500000];
vs = [159.846351000000;343.757153000000;412.372440000000;926.872313000000;1063.47274800000;1079.82945400000;1200.00004800000;1200.00004800000;1200.00004800000;1200.00004800000];
d1 = 1;
d2 = 2;
d3 = 3;
E = (d*(vs.^2).*(3*(vp.^2))./(vp.^2))./10000;

Réponse acceptée

Jacob Shulman
Jacob Shulman le 27 Déc 2018
Modifié(e) : madhan ravi le 28 Déc 2018
for i=1:10
if i<=3
E(i) = (d1*(vs(i)^2)*(3*(vp(i)^2))/(vp(i)^2))/10000;
elseif i<=8
E(i) = (d2*(vs(i)^2)*(3*(vp(i)^2))/(vp(i)^2))/10000;
else
E(i) = (d3*(vs(i)^2)*(3*(vp(i)^2))/(vp(i)^2))/10000;
end

Plus de réponses (0)

Catégories

En savoir plus sur Loops and Conditional Statements dans Help Center et File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by