| System Functions |
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| Format | COS(num[,ERR=stmtref]) Where: |
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| num | Numeric expression whose Cosine is to be returned. | |
| stmtref | Program line number or statement label to which to transfer control. | |
| Returns | Value between -1 and +1. | |
| Description | The COS( ) function returns the Cosine of the numeric expression. It returns a value between -1 and +1, rounded to the current PRECISION in effect. ACS( ) is its inverse function. | |
| Examples | 00010 PRINT 'CS' 00020 X=0,Y=80 00030 LASTX=0,LASTY=80 00040 FOR I=-20 TO 1 STEP .5 00050 X=X+25 00060 Y=50*COS(I)+80 00070 PRINT 'LINE'(LASTX,LASTY,X,Y) 00080 LASTX=X 00090 LASTY=Y 00100 NEXT |
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