11. Unary operations

A unary operation is one that is performed on a single object, with no additional inputs. A single object is returned.

11.1. unary plus

Unary plus. Returns the input object win with no modification.

wout = +win

Equivalent to wout = uplus(win)

11.2. unary minus

Unary minus. Returns the intensity field of the input object multiplied by -1, i.e. wout = -1  win.

wout = -win

Equivalent to wout = uminus(win)

11.3. Trigonometric and hyperbolic functions

With the form

wout = function(win)

where function is any of the following, trigonometric or hyperbolic operations may be performed on dnd or sqw objects.

• acos - arc cosine

• acosh - arc cosh

• acot - arc cot

• acoth - arc coth

• acsc - arc cosec

• acsch - arc cosech

• asec - arc sec

• asech - arc sech

• asin - arc sine

• asinh - arc sinh

• atan - arc tangent

• atanh - arc tanh

• cos - cosine

• cosh - cosh

• cot - cot

• coth - coth

• csc - cosec

• csch - cosech

• sec - sec

• sech - sech

• sin - sine

• sinh - sinh

• tan - tangent

• tanh - tanh

11.4. Other mathematical functions

Using the same syntax as above, one can perform the following operations:

• exp - exponential

• log - natural logarithm

• log10 - logarithm base 10