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Pythagoras? 14 Years Ago by gangster88 I have to get pthagaros to get the distance between 2 points. so the function distanceBetweenPoints(Point(1, 2), Point(4, 6)) should result in 5.0. the parameters are supposed to be P1, P2, which i think i have done?. The get an error when i try to execute this?.. help please def distanceBetweenPoints(p1, p2): return float(math.sqrt((p2-p1… Re: Pythagoras? 14 Years Ago by mn_kthompson What error are you getting? It seems to run fine for me. [CODE="python"] >>> import math >>> def distance(p1, p2): ... return float(math.sqrt((p2-p1)**2+(p2-p1)**2)) ... >>> print distance(1,6) 7.07106781187 >>> [/CODE] Re: Pythagoras? 14 Years Ago by woooee [QUOTE]The get an error when i try to execute this?[/QUOTE] Not enough info for anyone to help (could be an indentation error, or could be in the calcs). First add some print statements for the individual calcs to isolate the error, and post the specific error message. [CODE]def distance_between_points(p1, p2): p2subp1 = p2-p1 p1subp2 = p1… Re: Pythagoras? 14 Years Ago by jaison2 .. Re: Pythagoras? 14 Years Ago by gangster88 but the thing is we need it in this form.. distanceBetweenPoints(Point(1, 2), Point(4, 6)), so when we call the function and type it in we get the answer... Re: Pythagoras? 14 Years Ago by Gribouillis According to your previous post, I think that you are using the "graphics.py" module [url=http://mcsp.wartburg.edu/zelle/python/]like this one[/url]. In that case, since p1 and p2 are not numbers but Points, you must use first p1.getX() and p1.getY() to get the coordinates of the points. Re: Pythagoras? 14 Years Ago by gangster88 yeah but how do you do that?.. any examples you got? Re: Pythagoras? 14 Years Ago by Gribouillis For example [code=python] def myfunction(pointA, pointB): xa, ya = pointA.getX(), pointA.getY() xb, yb = pointB.getX(), pointB.getY() do_something_with(xa, ya, xb, yb) [/code] Re: Pythagoras? 14 Years Ago by gangster88 anything around these lines? def distanceBetweenPoints(p1, p2): x1, y1 = P1.getX(), P1.getY() x2, y2 = P2.getX(), P2.getY() distance = float(math.sqrt((x2-x1)**2+(y2-y1)**2)) Re: Pythagoras? 14 Years Ago by Gribouillis [QUOTE=gangster88;1040676]anything around these lines? def distanceBetweenPoints(p1, p2): x1, y1 = P1.getX(), P1.getY() x2, y2 = P2.getX(), P2.getY() distance = float(math.sqrt((x2-x1)**2+(y2-y1)**2))[/QUOTE] The parameters p1 and p2 should not become P1 ad P2 the next line. Also, what does pyhon say ? Re: Pythagoras? 14 Years Ago by gangster88 [QUOTE=Gribouillis;1040690]The parameters p1 and p2 should not become P1 ad P2 the next line. Also, what does pyhon say ?[/QUOTE] def distanceBetweenPoints(p1, p2): x1, y1 = p1.getX(), p1.getY() x2, y2 = p2.getX(), p2.getY() distanceBetweenPoints=float(math.sqrt((x2-x1)**2+(y2-y1)**2)) what about nw?.. python gives an error says "… Re: Pythagoras? 14 Years Ago by Gribouillis [QUOTE=gangster88;1040708] what about nw?.. python gives an error says "the name Point is not defined"[/QUOTE] add [code=python] from graphics import * [/code] at the top of your file. Also please use [url=http://www.daniweb.com/forums/announcement114-3.html]code tags[/url] to post your python code. And also post python error … Re: Pythagoras? 14 Years Ago by jaison2 [QUOTE=Gribouillis;1040726]add [code=python] from graphics import * [/code] at the top of your file. Also please use [url=http://www.daniweb.com/forums/announcement114-3.html]code tags[/url] to post your python code. And also post python error tracebacks if there is one.[/QUOTE] This is my code at the moment and when i type in … Re: Pythagoras? 14 Years Ago by Gribouillis you forgot the return statement. This is python, not pascal :) [code] from graphics import * import math def distanceBetweenPoints(p1, p2): x1, y1 = p1.getX(), p1.getY() x2, y2 = p2.getX(), p2.getY() return math.sqrt((x2-x1)**2+(y2-y1)**2) [/code] Re: Pythagoras? 14 Years Ago by vegaseat When you post a question like that, give as much pertinent information as you can. You needed to tell us right from the start that you are using the Zelle module graphics. Also, read the code that folks respond with and check it against the errors in your code. I have to give Gribouillis and A+ for patience! Try this code, it seems to work now … Re: Pythagoras? 14 Years Ago by gangster88 yup.. thankyou so much "Gribouillis"... it wrks... cheers.. Re: Pythagoras? 14 Years Ago by gangster88 [QUOTE=vegaseat;1040939]When you post a question like that, give as much pertinent information as you can. You needed to tell us right from the start that you are using the Zelle module graphics. Also, read the code that folks respond with and check it against the errors in your code. I have to give Gribouillis and A+ for patience! Try this … Pythagoras Theorem in C++ 16 Years Ago by DOrmisher I was wondering if anyone could help me with this little problem. What I am actually trying to do is implement 'picking' into a game I'm doing, but I'm actually stuck with some of the maths, thats why this isn't in the game forum. I'm trying to work out a field of view for a camera. If you look at the picture below, I'm trying to work out … Re: Pythagoras Theorem in C++ 16 Years Ago by bilgehakan89 what do you want exactly to find a relationship for x: if you so x = tan-1(b/a) Re: Pythagoras Theorem in C++ 16 Years Ago by VernonDozier [QUOTE=DOrmisher;568907]I was wondering if anyone could help me with this little problem. What I am actually trying to do is implement 'picking' into a game I'm doing, but I'm actually stuck with some of the maths, thats why this isn't in the game forum. I'm trying to work out a field of view for a camera. If you look at the picture below, I'm … Re: Pythagoras Theorem in C++ 16 Years Ago by DOrmisher cheers man, great help! school task help 19 Years Ago by Elektro … = (x2, y2) is given by the distance formula, derived from Pythagoras' Theorem: What to do: You are required to design and… Re: school task help 19 Years Ago by rickste_r … = Double.parseDouble(x2Cord); double y2 = Double.parseDouble(y2Cord); //do the pythagoras maths a = y2 - y1; b = x2 - x1; diff = Math.sqrt… Triangle Problem 14 Years Ago by Myko17 … know the formula for working out the hypotoneuse, it's Pythagoras' Theorem: [INDENT]a^2 + b^2 = c^2 (The ^ symbolises… a few questions 13 Years Ago by Dom Chester … book for me to get? 2) I have made a pythagoras theorem calculator and a celsuis to fahrenheit converter and am… simple screen shots (help a girl out) 13 Years Ago by kimiko … triangle include a method to test for a right angle (Pythagoras theorem) put the main method in a separate test driver… python fractal project 13 Years Ago by kk12345 Hey, So I need help with fractal project, Pythagoras Tree, and below is the code i need to complete. … Re: python fractal project 13 Years Ago by kk12345 The file supposes to show a Pythagoras Tree by importing movieSolution. The tree shuold look like this below [URL="http://en.wikipedia.org/wiki/Pythagoras_tree"]http://http://en.wikipedia.org/wiki/Pythagoras_tree[/URL] warning and errors after compiling 12 Years Ago by Wolter888 … * RealPart; // csqr = asqr + bsqr; // Vector = sqrt (csqr); // Amplitude calclution with // pythagoras Theorema // } // 10& Threshold value if(Vector > Threshold) { SignalDetected… Shortest distance between surface points (Python) 10 Years Ago by vegaseat One way to find the shortest distance between a series of surface (x, y) points is to let Python module itertools find the non-repeating combinations of point pairs. Now you can apply the Pythagoras' theorem to find all the distances and the minimum distance.