问一道简单的积分$sin(x^2)dx=？？？
（用$代表不定积分符号）
matlab says...
>> syms x
>> y=sin(x^2)
y =
sin(x^2)
>> int(y)
ans =
1/2*2^(1/2)*pi^(1/2)*FresnelS(2^(1/2)/pi^(1/2)*x)
>>
don't ask me what is "FresnelS()"
>> y=sin(x^2)
y =
sin(x^2)
>> int(y)
ans =
1/2*2^(1/2)*pi^(1/2)*FresnelS(2^(1/2)/pi^(1/2)*x)
>>
don't ask me what is "FresnelS()"
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