[PHOENIX-2020] Implement build-in math function EXP

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Fix Version/s: 4.5.0
• Assignee: Shuxiong Ye
• Reporter: Shuxiong Ye
• Created: 30/May/15 19:03
• Updated: 21/Nov/15 02:18
• Resolved: 16/Jun/15 00:21

Description

EXP is exponential function, and will be a special case of POWER function.

Examples show as below:

exp(dp) exponential exp(1.0) 2.71828182845905