Enter a clue or pattern or both:

### The Clue

It ranges from -1 to +1 (4 letter answer)

### The Answer

SINE

### Tags

### Notes

The answer SINE is seen frequently, appearing about once every 100 puzzles.

### Related Clues

___ die

___ function

Angle ratio

Kind of curve

Kind of wave

Math function

Math ratio

Math term

___ prole (childless)

___ qua non

Tangent's relative

Triangle ratio

Trig figure

Trig function

Trig ratio

Trig term

Trigonometric function

Type of curve

___ ua non

Without: Lat.

Autograph a math curve?

Fourier series function

Kind of curve, in math

Right-triangle ratio

It has a period of 2π

___ mora (without delay, in Latin)

It has a reciprocal function

Ratio of AB to BC, say

### Definition

SINE as a noun:

1. (sine, sin) = ratio of the opposite side to the hypotenuse of a right-angled triangle