It is also a very simple case, so I really need your help.

VOA: special.2009.12.26

Need to get the base in. Second thing I want to do, I need to get the height, so I'm going to input a value for the height, also as a float, a floating point.

也就是输入底的值，第二件我想要做的，事情就是得到三角形的高,因此我会输入一个值作为三角形的高，同样也是一个浮点数。

麻省理工公开课 - 计算机科学及编程导论课程节选

Also, this is a slight variation on the "I need" pattern. You can say "all I need is".

同样的，“I need”句型也会有些小的变形。你可以说“all I need is”。

I need 课堂 - SpeakingMax英语口语达人