ROOT
v6-32
Reference Guide
Loading...
Searching...
No Matches
formula1.py
Go to the documentation of this file.
1
## \file
2
## \ingroup tutorial_pyroot
3
## \notebook -js
4
## TF1 example.
5
##
6
## \macro_image
7
## \macro_code
8
##
9
## \author Wim Lavrijsen
10
11
from
ROOT
import
TCanvas, TFormula, TF1
12
from
ROOT
import
gROOT, gObjectTable
13
14
c1 =
TCanvas
(
'c1'
,
'Example with Formula'
, 200, 10, 700, 500 )
15
16
# We create a formula object and compute the value of this formula
17
# for two different values of the x variable.
18
form1 =
TFormula
(
'form1'
,
'sqrt(abs(x))'
)
19
form1.Eval( 2 )
20
form1.Eval( -45 )
21
22
# Create a one dimensional function and draw it
23
fun1 =
TF1
(
'fun1'
,
'abs(sin(x)/x)'
, 0, 10 )
24
c1.SetGridx()
25
c1.SetGridy()
26
fun1.Draw()
27
c1.Update()
28
29
# Before leaving this demo, we print the list of objects known to ROOT
30
#
31
if
( gObjectTable ):
32
gObjectTable.Print()
TCanvas
The Canvas class.
Definition
TCanvas.h:23
TF1
1-Dim function class
Definition
TF1.h:233
TFormula
The Formula class.
Definition
TFormula.h:89
tutorials
pyroot
formula1.py
ROOT v6-32 - Reference Guide Generated on Fri Nov 1 2024 15:09:41 (GVA Time) using Doxygen 1.9.8