Could anyone help me to solve the following condition.

I have three expressions of which two expressions need to satisfy certain conditions;

expression 1

C=A+B; A<B,C>B

expresion 2

D=B+C;B<C,D>C

expression 3

E=C

I am having the values of E=[20 40 60 80 100]

when E=20 how to generate the values of A,B,C and D with respect to the conditions given in expression 1 and 2.

Could anyone please help me on this.

[Bob Thompson]

What have you tried so far? Even if there is no code, what kind of structure are you thinking you want to do?

[jaah navi]

I tried with the following commands;

A=2

B=3

C=A+B

D=B+C

E=C

where i can get E=5.

But the values of A and B needs to be generated with respect to E which means code needs to execute in the reverse order.

Could you please help me on this.

[Walter Roberson]

Your conditions come down to saying

0 < A, 0 < B, A < B
A + 2 * B = 20

There an an infinite number of A, B that match this, including (6.66, 6.67), (6.5, 6.75), (6,7), (5, 7.5), (4, 8), (3, 8.5), (2, 9), (1,9.5), (0.5,9.75), (0.25,9.875) ...

[jaah navi]

The value of C is known,where C=[5 10 15 20]

The sum of A and B should be equal to C ,under the condition A<B

Say for example if C=5 the possiblity of A and B will be 2 and 3 or 1 and 4 (all should be of positive,should not be equal)

Among the two possiblity any one can be used.

if C=10,the possiblilty of A and B will be 4 and 6,3 and 7,2 and 8,1and 9.

Among the four possibilities any one can be obtained .

[madhan ravi]

How's this ifferent from https://in.mathworks.com/matlabcentral/answers/455930-how-to-get-the-value-of-two-variables-with-respect-to-fixed-value ?