# BASIC 256 - Language Documentation

pt:sin

## Sin

### Formato

sin ( expression )

### Descrição

Calcula o seno de expression (em radianos).

### Nota

A função devolve um valor aproximado.

### See Also

Acos, Asin, Atan, Cos, Degrees, Radians, Tan

### Exemplo

    clg
    color black
    # draw a line across the graphic output
    line 0,150,300,150
    # where do we start
    lastx = 0
    lasty = sin(0) * 50 + 150
    # now step across the line and draw
    for x = 0 to 300 step 5
       angle = x / 300 * 2 * pi
       y = sin(angle) * 50 + 150
       line lastx, lasty, x, y
       lastx = x
       lasty = y
    next x

Desenha:

pt/sin.txt · Last modified: 2012/12/01 02:03 by m_santos