How to get symbols using Keyboard

Alt + 0153..... ™... trademark symbol
Alt + 0169.... ©.... copyright symbol
Alt + 0174..... ®....registered ­ trademark symbol
Alt + 0176 ...°......degre ­e symbol
Alt + 0177 ...±....plus-or ­-minus sign
Alt + 0182 ...¶.....paragr ­aph mark
Alt + 0190 ...¾....fractio ­n, three-fourths
Alt + 0215 ....×.....multi ­plication sign
Alt + 0162...¢....the ­ cent sign
Alt + 0161.....¡..... ­.upside down exclamation point
Alt + 0191.....¿..... ­upside down question mark
Alt + 1...........sm ­iley face
Alt + 2 ......?.....bla ­ck smiley face
Alt + 15.....¤.....su ­n
Alt + 12......?.....f ­emale sign
Alt + 11.....?......m ­ale sign
Alt + 6.......?.....s ­pade
Alt + 5.......?...... ­Club
Alt + 3............. ­Heart
Alt + 4.......?...... ­Diamond
Alt + 13......?.....e ­ighth note
Alt + 14......?...... ­beamed eighth note
Alt + 8721.... ?.... N-ary summation (auto sum)
Alt + 251.....v.....s ­quare root check mark
Alt + 8236.....8..... ­infinity
Alt + 24.......?..... ­up arrow
Alt + 25......?...... ­down arrow
Alt + 26.....?.....ri ­ght arrow
Alt + 27......?.....l ­eft arrow
Alt + 18.....?......u ­p/down arrow
Alt + 29......?...lef ­t right arrow