importnumpyasnpdefoutput_scientific_notation(num):print('科学计数法输出:%e'%num)print('科学计数法输出:{:.2e}'.format(num))print(f'科学计数法输出:{num:.2e}')print('科学计数法输出:',np.format_float_scientific(num))if__name__=='__main__':num=1.23e6output_scientific_notation(num) 1....
num=2.5e3formatted_num=format(num,'.2f')print("原始数值:",num)print("科学记数法:",num)print("转换为常规小数:",formatted_num) 在这个示例中,我们使用了SymPy库来表示科学记数法。首先,我们导入了symbols和Eq模块。然后,我们定义了一个符号变量num来表示我们要处理的数值。接下来,我们使用format()函数...
def print_float32(val: float): """ Print Float32 in a binary form """ m = struct.unpack('I', struct.pack('f', val))[0] return format(m, 'b').zfill(32) print_float32(0.15625) # > 00111110001000000000000000000000 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. ...
int(x)将始终为整数。
no1=float(5800000.00000)no2=float(0.0000058)print(f"{no1:.1E}")print(f"{no2:.1E}") Output: 5.8E+065.8E-06 Notice that the format pattern is the same as the above method. TheNumPymodule in Python has a functionformat_float_scientific()that can be used to format a floating value ...
Here are a few examples of how to use some of the above specifiers in your strings: Python >>>"%d"%123.123# As an integer'123'>>>"%o"%42# As an octal'52'>>>"%x"%42# As a hex'2a'>>>"%e"%1234567890# In scientific notation'1.234568e+09'>>>"%f"%42# As a floating-point ...
>>> type(1.0) <class 'float'> In the following sections, you’ll learn the basics of how to create and work with floating-point numbers in Python.Floating-Point LiteralsThe float type in Python designates floating-point numbers. To create these types of numbers, you can also use literals...
使用print打印时,Python会对结果进行自动校正:In [25]: print 3.4 - 3.20.2浮点型的相关信息可以通过sys.float_info查看。例如,浮点数能表示的最大值:In [26]: sys.float_info.maxOut[26]: 1.7976931348623157e+308浮点数能表示的最接近0的值:In [27]: sys.float_info.min...
In Python, floating point numbers (float) are positive and negative real numbers with a fractional part denoted by the decimal symbol . or the scientific notation E or e, e.g. 1234.56, 3.142, -1.55, 0.23. Example: Float Numbers Copy f = 1.2 print(f) #output: 1.2 print(type(f)) #...
数字型数据类型包括整型(int)、浮点型(float)、布尔型(bool)和复数型(complex)等。其中,整型用于表示整数,浮点型用于表示浮点数或科学计算中的实数,布尔型用于表示 True 和 False 两个值,复数型用于表示实部和虚部都为浮点数的复数。 序列型(Sequence)