1:文本控制
>> figure
>> title('正常字体')>> figure(3)
>> title('\bf\it正常字体')
>> figure(4)
>> title('\bf\it_{上标}^{下标}正常字体')
>> title('\bf\it_{左上标}^{左下标}正常字体')
>>
>> title('\tau_{ind} versus \omega_{m}')
>> title('\theta varies from o\circ to 90\circ')
>> title('\theta varies from 0\circ to 90\circ')
>> title('\bf{B}_{S}')