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我怎么能够取代面前的括号和案文,同时又不触及其中的内容?
原标题:How can I replace parentheses and text before it without touching the content inside?
  • 时间:2023-08-26 20:16:14
  •  标签:
  • python
  • regex
This question was migrated from Super User because it can be answered on Stack Overflow. Migrated 5 hours ago.

I m 试图做这一科学计算。 它是一种投入,然后我利用电子数据得出结果。 I m试图将任何潜在的“in(ang)”变为“mp(math)”。

import mpmath
input_eq = input(  )
input_eq = input_eq.replace( sin ,  mpmath.sin )

由于可以发挥几个三重职能,而我可以写一下:

input_eq = input_eq.replace( sin( ,  mpmath.sin(mpmath.radians( ).replace( ) ,  )) )

还审判:

input_eq = re.sub(r sin[()] ,   , input_eq)
# This one treats every letter or character as a separate entity.
# Also tried:
input_eq = re.sub("sin(.*?)","()",input_eq)
# But this one removes inside the parentheses as well
问题回答

If you are trying to replace sin() with cosin(tan()) and the formula always looks like that, then this should do it:

x =  3+sin(angle)*2  
y = x.replace("sin(", "cosin(tan(").replace(")", "))")
print(y)




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