Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
knowledgegainer
Group Title
I need some help on this practice problem for Python.Positive root of the following equation:
34*x^2 + 68*x  510
Recall:
a*x^2 + b*x + c
x1 = (  b + sqrt ( b*b  4*a*c ) ) / ( 2*a )
what I typed is...
>>> import math
>>> math.sqrt(68*684*34*510)
272.0
>>> (68+sqrt(68*684*34*510))/(2*34)
but I keep getting
Traceback (most recent call last):
File "<pyshell#2>", line 1, in <module>
(68+sqrt(68*684*34*510))/(2*34)
NameError: name 'sqrt' is not defined
Can anyone help me with this and explain it?
Thanks a lot. I am a beginner...
 9 months ago
 9 months ago
knowledgegainer Group Title
I need some help on this practice problem for Python.Positive root of the following equation: 34*x^2 + 68*x  510 Recall: a*x^2 + b*x + c x1 = (  b + sqrt ( b*b  4*a*c ) ) / ( 2*a ) what I typed is... >>> import math >>> math.sqrt(68*684*34*510) 272.0 >>> (68+sqrt(68*684*34*510))/(2*34) but I keep getting Traceback (most recent call last): File "<pyshell#2>", line 1, in <module> (68+sqrt(68*684*34*510))/(2*34) NameError: name 'sqrt' is not defined Can anyone help me with this and explain it? Thanks a lot. I am a beginner...
 9 months ago
 9 months ago

This Question is Closed

salb Group TitleBest ResponseYou've already chosen the best response.1
what were you expecting when you wrote "(68+sqrt(68*684*34*510))/(2*34)" ?
 9 months ago

salb Group TitleBest ResponseYou've already chosen the best response.1
You either need to do: "from math import* if you don't want to type math.sqrt(2) and just say sqrt(2) or "from math import as m" so you could use m.sqrt(2). All I know is that how importing and using libraries works in python.
 9 months ago

knowledgegainer Group TitleBest ResponseYou've already chosen the best response.0
Hi thank you for your reply. When I wrote "(68+sqrt(68*684*34*510))/(2*34)" , I was expecting to get the final result.But I didn't get the final result, I got NameError: name 'sqrt' is not defined instead.
 9 months ago

salb Group TitleBest ResponseYou've already chosen the best response.1
"(68+math.sqrt(68*684*34*510))/(2*34)" is what you would want then in your case
 9 months ago

knowledgegainer Group TitleBest ResponseYou've already chosen the best response.0
Thank you so much, salb
 9 months ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.