c语言ln3怎么打出来

1 使樱物用math.h中的log函槐银数，其相当于ln

2 示例：求ln(2)的值

#include<stdio.h>

#include<math.h>

int main(){

double n = 2

double result = log(n)

printf("铅颂宴%lf", result)

getchar()

return 0

}

python+ln函数怎么打你好亲ln()是贺扮或一个Decimal类方法。它返回Decimal值的自然(对数e)对数缺销。用法：Decimal.ln()参数：十进制值返回：十进制值的自然禅伍(以e为底)对数。ln()使用方法示例：#PythonProgramexplaining#ln()method#loadingdecimallibraryfromdecimalimport*#Initializingadecimalvaluea=Decimal('.9932')b=Decimal('0.142857')#printingDecimalvaluesprint("Decimalvaluea:",a)print("Decimalvalueb:",b)#UsingDecimal.ln()methodprint("\n\nDecimalawithln()method:",a.ln())print("Decimalbwithln()method:",b.ln())输出：Decimalvaluea:0.9932Decimalvalueb:0.142857Decimalawithln()method:-0.006823225348125508334064182053Decimalbwithln()method:-1.945911149055813305438686327希望可以帮助的到您！

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