Rounding and Centering Functions

These functions round numbers and apply center/dead-zone transforms.

Rounds `x` up to the next integer.

Returns: number.

Example:

ceil(3.1);        // 4

Applies a simple dead zone.

Returns: `0` when absolute `x` is smaller than `min`; otherwise returns `x`.

Example:

center(0.02, 0.05);   // 0
center(0.10, 0.05);   // 0.10

Applies an advanced centering transform with dead-zone and scaling behavior.

Returns: number.

Example:

centerex(0.25, 0.05, 1.0, 0.5);

Rounds `x` down to the previous integer.

Returns: number.

Example:

floor(3.9);       // 3

Rounds `x` to the nearest integer.

Returns: number.

Example:

round(3.6);       // 4

Rounds `x` to a requested number of decimal places.

Returns: number.

Example:

round(12.345, 2);     // 12.35
round(1234, -2);      // 1200

Rounds `x` away from zero.

Returns: number.

Example:

roundup(3.1);     // 4
roundup(-3.1);    // -4

Removes the fractional part of `x`.

Returns: number.

Example:

trunc(3.9);       // 3
trunc(-3.9);      // -3

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