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what is 7 + 8: 15
[ 7 ] [ enter ] [ 8 ] [ + ]
what is 7 + 8 * 3: 31
[ 7 ] [ enter ] [ 8 ] [ enter ] [ 3 ] [ * ] [ + ]
what is (7 + 8) * 3: 45
[ 7 ] [ enter ] [ 8 ] [ + ] [ 3 ] [ * ]
given a right triangle with hypotenuse = 10 and one angle 50º (0.872664 radians)
what is the length of the opposite side? h / 10 = sin50 or h = 10 * sin50: 7.66
[ 10 ] [ enter ] [ 0.872664 ] [ sin ] [ * ]
Note: the arguments for sin and cos must be in radians.