how to make negative numbers into positive

Question

I am having the negative floating point number as   a   -0 340515    to convert this into positive number I used the abs   method as   a   abs a     the result is a   0 000000   But I need the result as 0 340515   Can anyone tell me how to do this

User · Answer

abs   is for integers only  For floating point  use fabs    or one of the fabs   line with the correct precision for whatever a actually is

User · Answer

this is the only way i can think of doing it    positive to minus int a   5     starting with 5 to become -5 int b   int a   2     b   10 int c   a - b     c   - 5  std  cout  lt  lt  c  lt  lt  endl    outputs - 5      minus to positive int a   -5  starting with -5 to become 5 int b   a   2      b   -10 int c   a   b     c   5 std  cout  lt  lt  c  lt  lt  endl    outputs 5  Function examples int b   0  int c   0    int positiveToNegative  int a        int b   a   2      int c   a - b      return c     int negativeToPositive  int a         int b   a   2      int c   a   b      return c

User · Answer

a     -1     problem solved  If there is a smaller solution for a problem  then why you guys going for a complex solution  Please direct people to use the base logic also because then only the people can train their programming logic

User · Answer

Why do you want to use strange hard commands  when you can use   if a  lt  0      a -  2a    The if statement obviously only applies when you aren t sure if the number will be positive or negative   Otherwise you ll have to use this code   a   abs a     a is an integer a   fabs a     a is declared as a double a   fabsf a     a is declared as a float  C   11 is able to use fabs a  for floats instead of fabs    To activate C   11  if you are using Code  Blocks  you have to    Open up Code  Blocks  recommended version  13 12   Go to Settings -  Compiler  Make sure that the compiler you use is GNU GCC Compiler  Click Compiler Settings  and inside the tab opened click Compiler Flags Scroll down until you find  Have g   follow the C   11 ISO C   language standard  -std c  11   Check that and then hit OK button  Restart Code  Blocks and then you are good to go    After following these steps  you should be able to use fabs a  for floats instead of fabsf a   which was used only for C99 or less   Even C   98 could allow you to use fabs instead of fabsf  P

User · Answer

Well  in mathematics to convert a negative number to a positive number you just need to multiple the negative number by -1   Then your solution could be like this   a   a   -1    or shorter   a    -1

User · Answer

Use float fabsf  float n  for float values   Use double fabs  double n  for double values   Use long double fabsl long double  for long double values   Use abs int  for int values

User · Answer

You have to use    abs   for int  fabs   for double  fabsf   for float Above function will also work but you can also try something like this       if a lt 0                 a -a

User · Answer

floor a  floor b  a   -0 340515    so what to do   b   65565  a  a   65565 -b    or  if a  lt  0   a   65565- 65565 a

[c] how to make negative numbers into positive

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