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MELSEC-Q
11 INSTRUCTIONS AND FUNCTIONS
TAN
Function
TANgent
• Returns the trigonometric tangent function of a value.
TAN(<numeric expression>)
Syntax
numeric expression
• • • •
Specify the value or the numeric variable in radians.
Examples
A=TAN(3.14159/180 45)
• • • •
Converts the angle of 45( to radians, calculates the
tangent value, and assigns it to A.
Description
• The TAN function returns the tangent function value of <numeric expression>, which must
be given in radians (
π
/180 x angle).
• Numeric expression can be any type of value, but the TAN function always calculates the
result in single-precision.
• If the following values are specified in <numeric expression>, a "Division by zero" error
occurs.
((2n + 1)
π
)/2
n=0, 1, 2, 3 • • •
π
=3.1415926
Program Example
10 ' This program returns tan 45°
20 A=(3.141592653#*45)/180
:
' Converts 45° to radian
30 B=TAN(A)
:
'Obtains tan 45°
40 PRINT "45°=";A;"radians"
50 PRINT "tan 45°=";B
60 END
RUN
45°=.785398 radians
tan 45° = 1
OK
REMARK
See the SIN and COS functions.
