How to update the value of the variable

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Mohamed Mahmoud
Mohamed Mahmoud 2020-10-25
回答： drummer 2020-10-25
clear
clc
syms forced velocityd densityd density dynamicviscosityd accelerationd Diameterd viscosityd Lengthd pressured a b c d y S Q x f Lenght forced velocity density dynamic_viscosity acceleration Diameter viscosity S1 S2 S z z1 z2 pressure %variables
syms M L T temp
repeating_v1 = input('What do u want to know');
temp=repeating_v1;
density=66;
repeating_v1;
disp("Your" + temp+ "is"+ repeating_v1 )
I want the answer to be
Your density is 66 if the input was density

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回答（1 个）

drummer
drummer 2020-10-25
Try this workaround
clear
clc
syms forced velocityd densityd density dynamicviscosityd accelerationd Diameterd viscosityd Lengthd pressured a b c d y S Q x f Lenght forced velocity density dynamic_viscosity acceleration Diameter viscosity S1 S2 S z z1 z2 pressure %variables
syms M L T temp
repeating_v1 = input('What do u want to know: \n');
temp=repeating_v1;
density=66;
if repeating_v1 == 'density' % Your condition: if input is density
X = ['Your ' char(repeating_v1) ' is ' num2str(density)];
disp(X);
end
Cheers

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