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AJ Longstreet
Treehouse Project ReviewerFinding the root of a function.
I'm working on a project for school and I've come up with a bit of Pseudocode for my algorithm and was wondering if I could get a few tips to help get this built properly in Python.
Input function f(x) and save as var f Assign value of 0 to i assign value of 1 to n while i != f while i < f i + n n / 10 = n
while i > f
i - n
n / 10 = n
while i < f
i + n
if i = f: print "Root equals "+ i
else:
loop
Things to fix
- possibility of infinite loop
- loop while statements until i = f
- Make code into real python code that will actually run.
2 Answers
AJ Longstreet
Treehouse Project ReviewerHaha. Yes the root. (Evil mobile device keyboards)
My project it to find the root of a function (f(x)=0) by moving sequentially from zero until I pass the root. Then changing direction and moving at 1/10 of that rate and repeating up I arrive at that number.
Jennifer Nordell
Treehouse TeacherAre you required to use that algorithm or are you allowed to use Newton's? And I'm assuming we're talking any positive number and not dealing with imaginary numbers here.
AJ Longstreet
Treehouse Project ReviewerThey want me to use that algorithm. Visualizing following along the x axis to find where the line crosses y0.
Jennifer Nordell
Treehouse TeacherJennifer Nordell
Treehouse TeacherSorry. I'm confused. Are you trying to find the root of a function? Ie are you trying to factor a quadratic equation? Or are you trying to find the square root of a number? Because the title says "foot" of a function, but I'm guessing that's a typo.