Showing a custom function using exp4j
Source code name: "func_exp3.py"
Programming language: Python
Topic: Function/Custom
DMelt Version 1. Last modified: 12/11/2015. License: Pro
https://datamelt.org/code/cache/func_exp3_4298.py
To run this script using the DMelt IDE, copy the above URL link to the menu [File]→[Read script from URL] of the DMelt IDE. 


from java.awt import* 
from jhplot  import * 
from jhplot.math.exp4j import *
from jhplot.math.exp4j.function import * 


class cf2(Function):
  def  apply(self,val):
    if (val[0]<100):  
                return val[0]*val[0] 
    if (val[0]>=100): 
                return  val[0] 

e=ExpressionBuilder("cf2(x)")
func=cf2("cf2",1);
e.function(func)
e.variables("x")
fff=e.build()
#fff.setVariable("x", 10);
#print fff.evaluate()

c1 = HPlot()
c1.visible(1)
c1.setAutoRange()
f=F1D(e.build(), 10,1000)
c1.draw(f)
You see the box below because you did not login.