Texas Instruments voyage 200 User Manual - Page 884

tan( ) Y key tan(expression1) ⇒ expression tan(list1) ⇒ list tan(expression1) returns the tangent of the argument as an expression. tan(list1) returns a list of the tangents of all elements in list1. Note: The argument is interpreted as a degree, gradian or radian angle, according to the current angle mode. You can use ó , G o r ô to override the angle mode setting temporarily. In Degree angle mode: tan((p/4)ô ) ¸ tan(45) ¸ tan({0,60,90}) ¸ In Gradian angle mode: 1 1 {0 ‡3 undef} tan((p/4)ô ) ¸ 200 • tan ( π 4 ) π tan(50) ¸ 1 tan({0,50,100}) ¸ {0 1 undef} In Radian angle mode: tan(p/4) ¸ 1 tan(45¡) ¸ 1 tan({p,p/3,-p,p/4}) ¸ {0 ‡3 0 1} tan(squareMatrix1) ⇒ squareMatrix In Radian angle mode: Returns the matrix tangent of squareMatrix1. This is not the same as calculating the tangent of each element. For information about the calculation method, refer to cos(). squareMatrix1 must be diagonalizable. The result always contains floating-point numbers. tan([1,5,3;4,2,1;6,ë 2,1]) ¸ ë122.81.1279...1... 26.088... ë 7.835... 11.114... ë 5.481...   36.818... ë 32.806... ë 10.459...  tanê () 2 S key tanê (expression1) ⇒ expression tanê (list1) ⇒ list tanê (expression1) returns the angle whose tangent is expression1 as an expression. tanê (list1) returns a list of the inverse tangents of each element of list1. Note: The result is returned as a degree, gradian or radian angle, according to the current angle mode setting. In Degree angle mode: tanê (1) ¸ 45 In Gradian angle mode: tanê (1) ¸ 50 In Radian angle mode: tanê ({0,.2,.5}) ¸ {0 .197... .463...} tanê(squareMatrix1) ⇒ squareMatrix Returns the matrix inverse tangent of squareMatrix1. This is not the same as calculating the inverse tangent of each element. For information about the calculation method, refer to cos(). squareMatrix1 must be diagonalizable. The result always contains floating-point numbers. In Radian angle mode: tanê([1,5,3;4,2,1;6,ë 2,1]) ¸ ë.7.4088...3... 1.266... .630... .622... ë.070...   1.686... ë 1.182... .455...  886 Appendix A: Functions and Instructions