Exponential integral En(x) (chart) Calculator

Calculates a table of the exponential integral En(x) and draws the chart.

Exponential integral En(x) (chart)
[ initial value x
    1. repetition
    2. ]

Exponential integral En(x) (chart)
[1-3] /3Disp-Num
[1]  2014/11/04 07:20   Male / 60 years old level or over / A teacher / A researcher / Very /
Purpose of use
Plot variation of radiation with height for
Great calculator. It would be nice to be able to export data to Excel
[2]  2013/11/14 05:08   Male / 60 years old level or over / A teacher / A researcher / Very /
Purpose of use
To compute gamma radiation variation with altitude from natural sources of gamma-radiation in the ground
[3]  2011/05/03 22:59   - / 60 years old level / Others / Very /
Purpose of use
Data will be used in a technical paper.
Very useful.


Thank you for your questionnaire.
Sending completion


To improve this 'Exponential integral En(x) (chart) Calculator', please fill in questionnaire.
Male or Female ?
Male Female
Under 20 years old 20 years old level 30 years old level
40 years old level 50 years old level 60 years old level or over
Elementary school/ Junior high-school student
High-school/ University/ Grad student A homemaker An office worker / A public employee
Self-employed people An engineer A teacher / A researcher
A retired person Others
Very Useful A little Not at All
Purpose of use?
Comment/Request (Click here to report a bug).Bug report (Click here to report questionnaire.)
Calculation bug(Please enter information such as specific input values, calculation result, correct result, and reference materials (URL and documents).)
Text bug(Please enter information such as wrong and correct texts)
Your feedback and comments may be posted as customer voice.