Trouble with negative float values in Python Lists
So i'm trying to work with floats as elements in Python lists but I keep getting this error. I tried making each value a string and then converting it to a float when calling the array to print but that doesn't seem to work either
P1 = [45.100000, ‐65.400000]
print(P1[0])
SyntaxError: invalid character in identifier
Attempt #2
P1 = ["45.100000", "‐65.400000"]
print(float(P1[1]))
ValueError: could not convert string to float: '‐65.400000'
I have a feeling the issues have to do with the negative value in front of the 2nd elements (@ index 1)
python list floating-point
asked Nov 13 '18 at 0:17
CosmicCat
825
add a comment |
So i'm trying to work with floats as elements in Python lists but I keep getting this error. I tried making each value a string and then converting it to a float when calling the array to print but that doesn't seem to work either
P1 = [45.100000, ‐65.400000]
print(P1[0])
SyntaxError: invalid character in identifier
Attempt #2
P1 = ["45.100000", "‐65.400000"]
print(float(P1[1]))
ValueError: could not convert string to float: '‐65.400000'
I have a feeling the issues have to do with the negative value in front of the 2nd elements (@ index 1)
python list floating-point
asked Nov 13 '18 at 0:17
CosmicCat
825
I jut copied your code into a python interpreter and it's not working either. I replaced the negative symbol with the one off my keyboard ( - ) and it worked. Are you using the correct negative symbol?
– Polymer
Nov 13 '18 at 0:23
add a comment |
So i'm trying to work with floats as elements in Python lists but I keep getting this error. I tried making each value a string and then converting it to a float when calling the array to print but that doesn't seem to work either
P1 = [45.100000, ‐65.400000]
print(P1[0])
SyntaxError: invalid character in identifier
Attempt #2
P1 = ["45.100000", "‐65.400000"]
print(float(P1[1]))
ValueError: could not convert string to float: '‐65.400000'
I have a feeling the issues have to do with the negative value in front of the 2nd elements (@ index 1)
python list floating-point
asked Nov 13 '18 at 0:17
CosmicCat
825
So i'm trying to work with floats as elements in Python lists but I keep getting this error. I tried making each value a string and then converting it to a float when calling the array to print but that doesn't seem to work either
P1 = [45.100000, ‐65.400000]
print(P1[0])
SyntaxError: invalid character in identifier
Attempt #2
P1 = ["45.100000", "‐65.400000"]
print(float(P1[1]))
ValueError: could not convert string to float: '‐65.400000'
I have a feeling the issues have to do with the negative value in front of the 2nd elements (@ index 1)
python list floating-point
python list floating-point
asked Nov 13 '18 at 0:17
CosmicCat
825
asked Nov 13 '18 at 0:17
CosmicCat
825
asked Nov 13 '18 at 0:17
CosmicCat
825
asked Nov 13 '18 at 0:17
CosmicCat
825
asked Nov 13 '18 at 0:17
CosmicCat
825
825
I jut copied your code into a python interpreter and it's not working either. I replaced the negative symbol with the one off my keyboard ( - ) and it worked. Are you using the correct negative symbol?
– Polymer
Nov 13 '18 at 0:23
add a comment |
I jut copied your code into a python interpreter and it's not working either. I replaced the negative symbol with the one off my keyboard ( - ) and it worked. Are you using the correct negative symbol?
– Polymer
Nov 13 '18 at 0:23
I jut copied your code into a python interpreter and it's not working either. I replaced the negative symbol with the one off my keyboard ( - ) and it worked. Are you using the correct negative symbol?
– Polymer
Nov 13 '18 at 0:23
I jut copied your code into a python interpreter and it's not working either. I replaced the negative symbol with the one off my keyboard ( - ) and it worked. Are you using the correct negative symbol?
– Polymer
Nov 13 '18 at 0:23
add a comment |
3 Answers
3
active
oldest
votes
I copied your code and ran it, and all I had to do was replace the "-" Seems like you were using a bad character. Try this;
P1 = [45.100000, -65.400000]
answered Nov 13 '18 at 0:23
user1394
3121313
1
Yes, that seems to fix the problem -_-
– CosmicCat
Nov 13 '18 at 0:24
add a comment |
There is a problem with the hyphen you are using. If you cut and paste the hyphen in your list p1, and check the unicode, it gives:
>>> ord('‐')
8208
Whereas the proper negative or subtraction sign should be:
>>> ord('-')
45
Depending on how you got that list, you either have to figure out why that character got included, or re-type it with the proper Hyphen-Minus
answered Nov 13 '18 at 0:23
sacul
29.9k41740
add a comment |
This is because your - is not a minus sign but a hyphen character:
>>> "‐65.400000".encode('utf-8') # copy from your example
b'xe2x80x9065.400000'
>>> "-65.400000".encode('utf-8') # Replace with my minus
b'-65.400000'
xe2x80x90 is a hyphen character, see here: your hyphen is U+2010 and the hyphen-minus is U+002D
answered Nov 13 '18 at 0:26
Kevin Fang
1,266316
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
I copied your code and ran it, and all I had to do was replace the "-" Seems like you were using a bad character. Try this;
P1 = [45.100000, -65.400000]
answered Nov 13 '18 at 0:23
user1394
3121313
1
Yes, that seems to fix the problem -_-
– CosmicCat
Nov 13 '18 at 0:24
add a comment |
I copied your code and ran it, and all I had to do was replace the "-" Seems like you were using a bad character. Try this;
P1 = [45.100000, -65.400000]
answered Nov 13 '18 at 0:23
user1394
3121313
1
Yes, that seems to fix the problem -_-
– CosmicCat
Nov 13 '18 at 0:24
add a comment |
I copied your code and ran it, and all I had to do was replace the "-" Seems like you were using a bad character. Try this;
P1 = [45.100000, -65.400000]
answered Nov 13 '18 at 0:23
user1394
3121313
I copied your code and ran it, and all I had to do was replace the "-" Seems like you were using a bad character. Try this;
P1 = [45.100000, -65.400000]
answered Nov 13 '18 at 0:23
user1394
3121313
answered Nov 13 '18 at 0:23
user1394
3121313
answered Nov 13 '18 at 0:23
user1394
3121313
answered Nov 13 '18 at 0:23
user1394
3121313
3121313
1
Yes, that seems to fix the problem -_-
– CosmicCat
Nov 13 '18 at 0:24
add a comment |
1
Yes, that seems to fix the problem -_-
– CosmicCat
Nov 13 '18 at 0:24
1
1
Yes, that seems to fix the problem -_-
– CosmicCat
Nov 13 '18 at 0:24
Yes, that seems to fix the problem -_-
– CosmicCat
Nov 13 '18 at 0:24
add a comment |
There is a problem with the hyphen you are using. If you cut and paste the hyphen in your list p1, and check the unicode, it gives:
>>> ord('‐')
8208
Whereas the proper negative or subtraction sign should be:
>>> ord('-')
45
Depending on how you got that list, you either have to figure out why that character got included, or re-type it with the proper Hyphen-Minus
answered Nov 13 '18 at 0:23
sacul
29.9k41740
add a comment |
There is a problem with the hyphen you are using. If you cut and paste the hyphen in your list p1, and check the unicode, it gives:
>>> ord('‐')
8208
Whereas the proper negative or subtraction sign should be:
>>> ord('-')
45
Depending on how you got that list, you either have to figure out why that character got included, or re-type it with the proper Hyphen-Minus
answered Nov 13 '18 at 0:23
sacul
29.9k41740
add a comment |
There is a problem with the hyphen you are using. If you cut and paste the hyphen in your list p1, and check the unicode, it gives:
>>> ord('‐')
8208
Whereas the proper negative or subtraction sign should be:
>>> ord('-')
45
Depending on how you got that list, you either have to figure out why that character got included, or re-type it with the proper Hyphen-Minus
answered Nov 13 '18 at 0:23
sacul
29.9k41740
There is a problem with the hyphen you are using. If you cut and paste the hyphen in your list p1, and check the unicode, it gives:
>>> ord('‐')
8208
Whereas the proper negative or subtraction sign should be:
>>> ord('-')
45
Depending on how you got that list, you either have to figure out why that character got included, or re-type it with the proper Hyphen-Minus
answered Nov 13 '18 at 0:23
sacul
29.9k41740
answered Nov 13 '18 at 0:23
sacul
29.9k41740
answered Nov 13 '18 at 0:23
sacul
29.9k41740
answered Nov 13 '18 at 0:23
sacul
29.9k41740
29.9k41740
add a comment |
add a comment |
This is because your - is not a minus sign but a hyphen character:
>>> "‐65.400000".encode('utf-8') # copy from your example
b'xe2x80x9065.400000'
>>> "-65.400000".encode('utf-8') # Replace with my minus
b'-65.400000'
xe2x80x90 is a hyphen character, see here: your hyphen is U+2010 and the hyphen-minus is U+002D
answered Nov 13 '18 at 0:26
Kevin Fang
1,266316
add a comment |
This is because your - is not a minus sign but a hyphen character:
>>> "‐65.400000".encode('utf-8') # copy from your example
b'xe2x80x9065.400000'
>>> "-65.400000".encode('utf-8') # Replace with my minus
b'-65.400000'
xe2x80x90 is a hyphen character, see here: your hyphen is U+2010 and the hyphen-minus is U+002D
answered Nov 13 '18 at 0:26
Kevin Fang
1,266316
add a comment |
This is because your - is not a minus sign but a hyphen character:
>>> "‐65.400000".encode('utf-8') # copy from your example
b'xe2x80x9065.400000'
>>> "-65.400000".encode('utf-8') # Replace with my minus
b'-65.400000'
xe2x80x90 is a hyphen character, see here: your hyphen is U+2010 and the hyphen-minus is U+002D
answered Nov 13 '18 at 0:26
Kevin Fang
1,266316
This is because your - is not a minus sign but a hyphen character:
>>> "‐65.400000".encode('utf-8') # copy from your example
b'xe2x80x9065.400000'
>>> "-65.400000".encode('utf-8') # Replace with my minus
b'-65.400000'
xe2x80x90 is a hyphen character, see here: your hyphen is U+2010 and the hyphen-minus is U+002D
answered Nov 13 '18 at 0:26
Kevin Fang
1,266316
answered Nov 13 '18 at 0:26
Kevin Fang
1,266316
answered Nov 13 '18 at 0:26
Kevin Fang
1,266316
answered Nov 13 '18 at 0:26
Kevin Fang
1,266316
1,266316
add a comment |
add a comment |
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I jut copied your code into a python interpreter and it's not working either. I replaced the negative symbol with the one off my keyboard ( - ) and it worked. Are you using the correct negative symbol?
– Polymer
Nov 13 '18 at 0:23