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# Solving Problem

11-16-2018 07:58 AM

Hello

My HP Prime Graphing Calculator solves solve(x^3+e^x - 1 = 0,x) WRONG.

I dont know the problem but the solution is "x=0".

Does anybody know how to solve this problem?

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## Solving Problem

11-16-2018 08:39 AM

Hi!, @Jabbapav :

With the Wolfram Alpha, the result is ...

In the HP PRIME ...

1) Select the option Apps Solve ...

Now, write the equation ...

Press ...

The result, is same what Wolfram Alpha and is = 0.

If press, Solve, you can obtein the result.

You're Welcome !.

Best wishes and regards.

@Maké (Voluntary and "ad honorem").

Click the White thumb to say thanks.

Please, mark Accept As Solution if it solves your problem.

PD : The experience is a comb that you are given, when you have become bald.

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## Solving Problem

11-17-2018 06:29 AM

What happens if there is more than 0 Solution for X/Y?

For Example:

f1: 3x^2 + 12y

f2: 12x + 24y^2

Solution: (0,0) & (-2,-1)

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## Solving Problem

11-17-2018 07:33 AM - edited 11-17-2018 08:32 AM

Hi!, @Jabbapav :

You can see, this video ... https://www.youtube.com/watch?v=K_MAnrWSrgQ

You're Welcome !.

Best wishes and regards.

@Maké (Voluntary and "ad honorem").

Click the White thumb to say thanks.

Please, mark Accept As Solution if it solves your problem.

PD : The experience is a comb that you are given, when you have become bald.

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## Solving Problem

11-17-2018 07:50 AM

Thx

I know what u mean. But i mean if there is more than only 1 solution for x/y like my example.

How can i show all answers and not only one solution

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## Solving Problem

11-17-2018 08:33 AM

Hi!, @Jabbapav :

__ Note__ : The result what you indicate, only represent, the real root's, of the equation's.

You're Welcome !.

Best wishes and regards.

@Maké (Voluntary and "ad honorem").

Click the White thumb to say thanks.

Please, mark Accept As Solution if it solves your problem.

PD : The experience is a comb that you are given, when you have become bald.

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## Solving Problem

11-19-2018 05:03 PM

When solve switches to fsolve and I get a near zero result (such as a 1E-15), I try to encourage the solver.

I often try setting a guess or interval using the notation x=guess or min..max, or I try to set the iterative algorithm (method). The fsolve help has more info.

fsolve((x^3+e^x-1) = 0,x = 0) ---> 0

fsolve((x^3+e^x-1) = 0,x,newton_solver) ---> 0