Schnittstelle
f ( x ) = g ( x )
x = 1
x = 3
f ( x ) = x2 + x -1 ;
f´ ( x ) = 2 * x + 1
f ´( 1 ) = 2 * 1 + 1 = 3
arctan ( 3 ) = 71.565 °
g ( x ) = 2 *x2-3*x +2;
g ´( x ) = 4 * x - 3
g ´( 1 ) = 1
arctan ( 1 ) = 45 °
Schnittwinkel
71.565 - 45 = 26.565 °
mfg Georg