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# LogiView

## Function 'cos'

| This function returns the result of a trigonometric cosine function.
| ### Syntax:
| {INT_VAR|FLO_VAR}= cos({NUM_EXPR})
| ### I/O parameters:
| {NUM_EXPR} | Value to be calculated (in radian).
| - |
| ### Return value:
| {INT_VAR|FLO_VAR} | Integer or float value containing the result of this function.
| ### Example:
| Declaration of Variables
    10 ask(DOCU_INT_1,"Please enter a value between

                  0 and 360!")

    20 DOCU_FLOAT_1=cos(DOCU_INT_1)

    30 put(DOCU_FLOAT_1)
| Result: (For DOCU_INT_1 = 30)
| In order to prevent errors, the float/double type must be used if results can be expected to be either very large or very small (<2^-31 or > 2^31).
| Functions and commands: Mathematical Functions