SINH

Syntax SINH (x)
Location Hyper, Hyperbola

This function returns the hyperbolic sine (sinus hyperbolicus). The function is equivalent to: ( EXP(x) - EXP(-x) ) / 2 where the angle x (in fact a ratio) is a small floating point value.

Example

Draw a hyperbola and its asymptotes:

100 SCALE 10, -7, -5: PAPER 0: CLS: INK 3
110 LINE -4, -4 TO 4, 4, -4, 4 TO 4, -4: INK 7
120 FOR t = -2 TO 2 STEP 2E-2
130 x = COSH(t): y = SINH(t)
140 POINT x, y, -x, y
150 END FOR t

CROSS-REFERENCE

COSH, TANH, ARSINH