60d1b6a5-bd62-46b4-a514-3f1ec6c8775b 28 overlord 3 5 false true 0 decimal

&[DATE] &[TIME]

eq.1 x 2 ^ y * y 2 ^ x * + 1 + : eq.2 x 2 ^ y + 3 - : 2 1 sys

As you can see two equation intersect at five points. So there are five solutions for these two equations. Integrated solve() function shouldn't accept multiple equations as far as I know, it is for single equation solution. roots() and FindRoot() can solve this type of problems but they will give you single solution for designated range. It is better to plot equations, determine the range by intersections and try to find all solutions either by roots() or FindRoot() by changing the ranges.

eq.1 eq.2 21 mat x y 21 mat Solve x 0.1166857991761766 - ≡ y 2.986384266263237 ≡ 21 sys x 1.152560842717036 - ≡ y 1.671603348358017 ≡ 21 sys x 1.807414540202215 - ≡ y 0.266747067207543 - ≡ 21 sys x 1.836269430051813 ≡ y 0.3718848718848719 - ≡ 21 sys x 2.240391861341371 ≡ y 2.019355814305157 - ≡ 21 sys 15 mat