+- HP Forums (https://www.hpmuseum.org/forum)
+-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html)
+--- Forum: HP Prime (/forum-5.html)
+--- Thread: Apps->Solve other solutions (/thread-20377.html)
Apps->Solve other solutions - averagejoje - 08-24-2023 12:14 AM
I am trying to find the solution to
0 = 20 + 15*sin(pi*x/6) - 4 - 2^(0.1*x^2) , where x >= 0.
I enter the equation
y = 20 + 15*sin(pi*x/6) - 4 - 2^(0.1*x^2)
into Apps->Solve.
If I press the Plot button, I can see multiple solutions where y = 0.
If I press the Num button, enter y=0 and press the Solve soft key, I get only 1 of the solutions (and not the one I want).
I get the same solution that I don't want if I use Toolbox->Solve->Solve.
1) How do I get the other solutions to the equation?
2) On Plot, how do I find precisely where the graph crosses the x-axis?
Thanks.
RE: Apps->Solve other solutions - rawi - 08-24-2023 12:49 PM
averagejoje wrote:
Quote:On Plot, how do I find precisely where the graph crosses the x-axis?Touch on function with finger. Touch Menu - Fcn - 4 Root and you see the x value of the next root on the bottom of the screen.