Solving Quadratic Equation

Question

My program doesn t seem to give me the right solutions  Sometimes it does  sometimes it doesn t  I can t find my error  Any Suggestions   import math  a b c   input  Enter the coefficients of a  b and c separated by commas      d   b  2-4 a c   discriminant  if d  lt  0      print  This equation has no real solution  elif d    0      x    -b math sqrt b  2-4 a c   2 a     print  This equation has one solutions     x else      x1    -b math sqrt b  2-4 a c   2 a     x2    -b-math sqrt b  2-4 a c   2 a     print  This equation has two solutions     x1    and   x2

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one liner solve quadratic equation from math import sqrt s   lambda a b c    -b-sqrt d   2 a  -b sqrt d   2 a  if  d  b  2-4 a c  gt  0 else    roots set   s int input  a     int input  b     int input  c      print roots set f number of roots  len roots set      one line python solve quadratic equations video

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How about accepting complex roots as solutions   import math    User inserting the values of a  b and c  a   float input  Insert coefficient a      b   float input  Insert coefficient b      c   float input  Insert coefficient c       discriminant   b  2 - 4   a   c  if discriminant  gt   0      x 1  -b math sqrt discriminant   2 a     x 2  -b-math sqrt discriminant   2 a else      x 1  complex  -b  2 a   math sqrt -discriminant   2 a       x 2  complex  -b  2 a   -math sqrt -discriminant   2 a    if discriminant  gt  0      print  The function has two distinct real roots     x 1    and    x 2  elif discriminant    0      print  The function has one double root     x 1  else      print  The function has two complex  conjugate  roots     x 1    and    x 2

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syntaxis 2 7   solution for quadratic equation   a x  2   b x   c   0  d   b  2-4 a c   discriminant  if d  lt  0      print  No solutions  elif d    0      x1   -b    2 a      print  The sole solution is  x1 else    if d  gt  0     x1    -b   math sqrt d      2 a      x2    -b - math sqrt d      2 a      print  Solutions are  x1  and  x2

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This line is causing problems    -b math sqrt b  2-4 a c   2 a   x 2 a is interpreted as  x 2  a  You need more parentheses    -b   math sqrt b  2 - 4 a c      2   a    Also  if you re already storing d  why not use it   x    -b   math sqrt d      2   a

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Here you go this should give you the correct answers every time   a   int input  Enter the coefficients of a      b   int input  Enter the coefficients of b      c   int input  Enter the coefficients of c       d   b  2-4 a c   discriminant  if d  lt  0      print   This equation has no real solution   elif d    0      x    -b math sqrt b  2-4 a c   2 a     print   This equation has one solutions      x else      x1    -b math sqrt  b  2 - 4  a c      2 a      x2    -b-math sqrt  b  2 - 4  a c      2 a      print   This equation has two solutions     x1    or   x2

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give input through your keyboard  a float input  enter the 1st number       b float input  enter the 2nd number       c float input  enter the 3rd number         calculate the discriminant  d    b  2  -  4 a c    possible solution are  sol 1    -b- 0 5  d    2 a  sol 2    -b  0 5  d    2 a    print the result  print  The solution are   0 f  0 f   sol 1 sol 2

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lt code gt  import cmath import math print   we are going to programming second grade equation in python   print   a 2 x   b x   c  0    num1   int input   enter A please       num2   int input   enter B please       num3   int input   enter c please       v   num2 num2 - 4  num1   num3 print v  if v  lt  0       print  wrong values   else      print  root of delta     v      k  math sqrt v   def two sol x y        x f   -y   v   4 x      x s   -y - v   4 x      return x f   x s  def one sol x       x f    -y   v     4   x   if v  gt 0       print  we have two solution     two sol num1 num2    elif v    0      print   we have one solution      one sol y    else      print   there is no solution       lt  code gt

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Below is the Program to Solve Quadratic Equation   For Example  Solve x2   3x     4   0  This quadratic happens to factor   x2   3x     4    x   4  x     1    0  we already know that the solutions are x      4 and x   1           import complex math module     import cmath      a   1     b   5     c   6        To take coefficient input from the users       a   float input  Enter a            b   float input  Enter b            c   float input  Enter c             calculate the discriminant     d    b  2  -  4 a c         find two solutions     sol1    -b-cmath sqrt d    2 a      sol2    -b cmath sqrt d    2 a       print  The solution are  0  and  1   format sol1 sol2     Source  Python Program to Solve Quadratic Equation

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import math    a   int input  Enter the coefficients of a      b   int input  Enter the coefficients of b      c   int input  Enter the coefficients of c       d   b  2-4 a c   discriminant  if d  lt  0      print   This equation has no real solution   elif d    0      x    -b math sqrt b  2-4 a c   2 a     print    This equation has one solutions      x   add the extra    above or it does not show the answer just the text  else      x1    -b math sqrt  b  2 - 4  a c      2 a      x2    -b-math sqrt  b  2 - 4  a c      2 a      print   This equation has two solutions     x1    or   x2

[python] Solving Quadratic Equation

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