Texas Instruments TI-89 User Manual - Page 877

sin(squareMatrix1) ⇒ squareMatrix Returns the matrix sine of squareMatrix1. This is not the same as calculating the sine 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: sin([1,5,3;4,2,1;6,ë2,1]) ¸ .ë9.4024...5... ë.045... .949... ë.031... ë.020...   ë.048... ë.005... .961...  sinê () ¥ Q key sinê (expression1) ⇒ expression sinê (list1) ⇒ list sinê (expression1) returns the angle whose sine is expression1 as an expression. sinê (list1) returns a list of the inverse sines 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: sinê (1) ¸ 90 In Gradian angle mode: sinê (1) ¸ 100 In Radian angle mode: sinê ({0,.2,.5}) ¸ {0 .201... .523...} sinê(squareMatrix1) ⇒ squareMatrix Returns the matrix inverse sine of squareMatrix1. This is not the same as calculating the inverse sine 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 and Rectangular complex format mode: sinê([1,5,3;4,2,1;6,ë2,1]) ¸ .ë7.2156...4ì...ì1..501654......øøii 1.490...ì 2.105...øi .947...ì.778...øi ... ...   2.083...ì 2.632...øi ë 1.790...+1.271...øi ...  sinh( ) MATH/Hyperbolic menu sinh(expression1) ⇒ expression sinh(list1) ⇒ list sinh (expression1) returns the hyperbolic sine of the argument as an expression. sinh (list) returns a list of the hyperbolic sines of each element of list1. sinh(squareMatrix1) ⇒ squareMatrix Returns the matrix hyperbolic sine of squareMatrix1. This is not the same as calculating the hyperbolic sine of each element. For information about the calculation method, refer to cos(). squareMatrix1 must be diagonalizable. The result always contains floating-point numbers. sinh(1.2) ¸ 1.509... sinh({0,1.2,3.}) ¸ {0 1.509... 10.017...} In Radian angle mode: sinh([1,5,3;4,2,1;6,ë2,1]) ¸ 336502..995142 305.708 233.495 213993..650644 298.632 154.599 140.251 sinhê ( ) MATH/Hyperbolic menu sinhê (expression1) ⇒ expression sinhê (list1) ⇒ list sinhê (expression1) returns the inverse hyperbolic sine of the argument as an expression. sinhê (list1) returns a list of the inverse hyperbolic sines of each element of list1. sinhê (0) ¸ 0 sinhê ({0,2.1,3}) ¸ {0 1.487... sinhê (3)} Appendix A: Functions and Instructions 877