dh-Materialien Einführung in Maple    Übungen
|  Home  |  Back  |  <   >  |

Mathematik
 

Einführung in Maple
  Hinweise
  Übersicht
  Übungen
  Anwendungen
  Stichworte
  Download
 

Trigonometrische Funktionen

restart; with (plots):
Warning, the name changecoords has been redefined

sin und cos:

plot ([sin(x), cos(x)], x = -2*Pi..2*Pi,
      color = [black, red]);

sin und cos

sin und tan:

plot ([sin(x), tan(x)], x = -2*Pi..2*Pi,
      y = -5..5,
      color = [black, red],
      discont = true);

sin und tan

Besondere Werte:

sin(Pi/4);
cos(Pi/3);

1/2*2^(1/2)
1/2

Vereinfachen trigonometrischer Ausdrücke:

(sin^2)(x) + (cos^2)(x);
simplify (%);

sin(x)^2+cos(x)^2
1

simplify (sin(x + Pi/2));
simplify (sin(x)^4 - cos(x)^4);
combine (4*cos(x)^3 - 3*cos(x), trig);

cos(x)
1-2*cos(x)^2 
cos(3*x)

Umformen trigonometrischer Ausdrücke:

expand (tan(2*x));
expand (sin(3*x)); 

2*tan(x)/(1-tan(x)^2)
4*sin(x)*cos(x)^2-sin(x)

Umwandlung vom Bogenmaß ins Winkelmaß:

w:= convert (b, degrees);
w:= evalf(%);
w:= convert (Pi, degrees);

w := 180*b/Pi*degrees 
w := 57.29577950*b*degrees
w := 180*degrees

Umwandlung vom Winkelmaß ins Bogenmaß:

b:= convert (alpha*degrees, radians);
b:= convert (30*degrees, radians);

b := 1/180*alpha*Pi
b := 1/6*Pi

Lösen trigonometrischer Gleichungen:

solve (sin(x) = cos(x), x); 

1/4*Pi

_EnvAllSolutions:= true:
lgn:= solve (sin(x) = cos(x), x);

lgn := 1/4*Pi+Pi*_Z2

alias (k = _Z2):
lgn;
about (k); 

1/4*Pi+Pi*k

Originally _Z2, renamed _Z2~:
  is assumed to be: integer

Arcusfunktionen:

simplify (arcsin (sin(x)));

arcsin(sin(x))

assume (x >= -Pi/2, x <= Pi/2);
interface (showassumed = 0);
simplify (arcsin (sin(x)));
simplify (arctan (tan(x))); 

x
x

plot ([sin(x), arcsin(x)], x = -Pi/2..Pi/2,
      color = [black, red]); 

sin und arcsin

Copyright

Valid HTML 4.01 Transitional

|  Home  |  Back  |  Top  |