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请输入英文单字，中文词皆可：

nan    音标拼音: [n'æn]
n. 女子名的昵称

女子名的昵称

nan
n 1: your grandmother
2: the mother of your father or mother [synonym: {grandma},
{grandmother}, {granny}, {grannie}, {gran}, {nan}, {nanna}]
3: a river of western Thailand flowing southward to join the
Ping River to form the Chao Phraya [synonym: {Nan}, {Nan River}]
4: leavened bread baked in a clay oven in India; usually shaped
like a teardrop [synonym: {nan}, {naan}]

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英文字典中文字典相关资料:


  • How do you check that a number is NaN in JavaScript?
    182 I just came across this technique in the book Effective JavaScript that is pretty simple: Since NaN is the only JavaScript value that is treated as unequal to itself, you can always test if a value is NaN by checking it for equality to itself:
  • python - How to check for NaN values - Stack Overflow
    float('nan') represents NaN (not a number) But how do I check for it?
  • What is the difference between NaN and None? - Stack Overflow
    In my opinion, the value read to that dictionary entry should be None but instead nan is assigned Surely None is more descriptive of an empty cell as it has a null value, whereas nan just says that the value read is not a number Is my understanding correct, what IS the difference between None and nan? Why is nan assigned instead of None?
  • javascript - Why is NaN === NaN false? - Stack Overflow
    JavaScript automatic type conversion convert NaN into number, so checking if a number is not a number will always b false and NaN !== NaN will be true
  • What is the difference between NaN and NA? - Cross Validated
    I would like to know why some languages like R has both NA and NaN What are the differences or are they equally the same? Is it really needed to have NA?
  • python - How to check if particular value (in cell) is NaN in pandas . . .
    >>> df iloc[1,0] nan So, why is the second option not working? Is it possible to check for NaN values using iloc? Editor's note: This question previously used pd np instead of np and ix in addition to iloc, but since these no longer exist, they have been edited out to keep it short and clear
  • Why does IEEE 754 reserve so many NaN values? - Stack Overflow
    It seems that the IEEE 754 standard defines 16,777,214 32-bit floating point values as NaNs, or 0 4% of all possible values I wonder what is the rationale for reserving so many useful values, while
  • Why does typeof NaN return number? - Stack Overflow
    Thats why NAN != NAN because each NAN value represents some unique unknown number NANs are necessary because floating point numbers have a limited range of values
  • Checking if a double (or float) is NaN in C++ - Stack Overflow
    Just a note, 1 oz of prevention is better than 1 lb of cure In other words, preventing 0 f 0 f from ever being executed is far better than retroactively checking for nan 's in your code nan is can be terribly destructive to your program, if allowed to proliferate it can introduce hard to find bugs This is because nan is toxic, (5* nan = nan), nan is not equal to anything (nan != nan), nan
  • How to use nan and inf in C? - Stack Overflow
    122 I have a numerical method that could return nan or inf if there was an error, and for testing purposed I'd like to temporarily force it to return nan or inf to ensure the situation is being handled correctly Is there a reliable, compiler-independent way to create values of nan and inf in C?





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