Input:
dsolve( x(1,t)=x,y(1,t)=x-y )
Write:
`dsolve( x(1,t)=x,y(1,t)=x-y )`
Compute:
$$dsolve(x^{(1)}(t)=x,y^{(1)}(t)=x - y)$$
Output:
$$dsolve(x^{(1)}(t)=x,y^{(1)}(t)=x - y)== x=exp(C_1+t), y=\frac{1}{2}\ exp(C_1+t)+exp(C_1-t)$$
Result: $$x=exp(C_1+t), y=\frac{1}{2}\ exp(C_1+t)+exp(C_1-t)$$
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