vault backup: 2023-07-21 21:09:23

This commit is contained in:
2023-07-21 21:09:23 +02:00
parent 813a004804
commit 4614753b0d
26 changed files with 109 additions and 11 deletions

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@@ -229,28 +229,29 @@
"juggl:Juggl global graph": false
}
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"Mathe/Ilias/Zusatz_Material/komplex_nullstwxm.sec",
"Mathe/Ilias/klaumfi2_20210831.pdf",
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// Cosinus.java
// Programm zum Spielen, Ausprobieren und Verbessern
// Ziel: "Gute" Berechnung der Cosinus-Funktion
import java.io.*;
public class Cosinus
{
public static double myfak(int k)
{
double x;
if (k==0) {return 1.0;}
else {return ((double) k)*myfak(k-1);}
}
public static double mycos(double x)
{
double sum=0.0;
double term=0.0;
for (int k=0;k<=10;k++)
{
term=Math.pow((-1),k)*Math.pow(x,2*k)/myfak(2*k);
sum+=term;
}
return sum;
}
public static void main(String[] args) throws IOException
{
double x;
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
System.out.print("Wie lautet die Stelle x? x = ");
x = Double.parseDouble(in.readLine());
System.out.println("Meine Rechnung liefert cos(x) = " + mycos(x));
System.out.println("Java-Mathe-Bib liefert cos(x) = " + Math.cos(x));
}
}

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// Folge.java
import java.io.*;
public class Folge
{
public static void main(String[] args) throws IOException
{
double x=2.0,a=2.0;
for (int k=0; k<=9; k++)
{
System.out.println("k = "+ k +" a_k = "+ a);
a=0.5*(a+x/a); // Heron-Iteration
// a=Math.sqrt(k*k+3.0*k)-k;
// System.out.println(Double.MAX_VALUE);
}
}
}

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@@ -0,0 +1,19 @@
// Reihe.java
import java.io.*;
public class Reihe
{
public static void main(String[] args) throws IOException
{
double s=0.0,a_k=0.0;
for (int k=0; k<=30; k++)
{
s=s+Math.pow(2.0/3.0,k); // geometrische Reihe q=2/3
System.out.println("n = "+ k +" S_n = "+ s);
}
}
}

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@@ -0,0 +1,22 @@
/* [wxMaxima batch file version 1] [ DO NOT EDIT BY HAND! ]*/
/* [ Created with wxMaxima version 18.02.0 ] */
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z:a+b*%i;
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/*plot3d(abs(z^3-7*z^2+17*z-15),[a,1.5,3.2],[b,-1.2,1.2],*/
plot3d(abs(z^2+1),[a,-1.0,1.0],[b,-1.5,1.5],
/*contour_plot(abs(z^3-3*z^2+4*z-2),[a,0.25,1.75],[b,-1.25,1.25], [gnuplot_preamble, "set cntrparam levels 39"],*/
/*contour_plot(abs(z^3-7*z^2+17*z-15),[a,1.5,3.2],[b,-1.2,1.2], [gnuplot_preamble, "set cntrparam levels 39"],*/
/*contour_plot(abs(z^2+1),[a,-1.0,1.0],[b,-1.5,1.5], [gnuplot_preamble, "set cntrparam levels 39"],*/
/*[zlabel,""],[mesh_lines_color,false], [elevation,0], [azimuth,0], */
[grid,100,100], [ztics,false], [color_bar_tics,0.01],
[zlabel,"|p(z)|"],[mesh_lines_color,true],[ztics,1],
[box,true],[xtics,0.25],[ytics,0.5],
[legend,false],[palette,[gradient, "#0000f4", "#0000ff"]],[color,blue]);
/* [wxMaxima: input end ] */
/* Old versions of Maxima abort on loading files that end in a comment. */
"Created with wxMaxima 18.02.0"$

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Mathe/Ilias/klaumfi2_pk.pdf Normal file

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