1. List of Alt Codes for entering Mathematical Symbols<br />ALT Codes for Mathematical Symbols Alt Code Symbol Description Alt 48 - 57 0 - 9 zero to nine Alt Codes for Basic Operators Alt Code Symbol Description Alt 43 + Plus Sign Alt 45 - Minus Sign Alt 0215 × Multiplication Sign Alt 0247 ÷ Obelus / Division ign Alt Codes for Pers Alt Code Symbol Description Alt 37 % Percentage Sign Alt 0137 ‰ Per mille (per thousand) Alt Codes for Bracketing Alt Code Symbol Description Alt 40 ( Open Bracket Alt 41 ) Close Bracked Alt Codes for Degree of Accuracy Alt Code Symbol Description Alt 241 ± Plus or Minus Alt Codes for Fractions Alt Code Symbol Description Alt 47 / Fraction seperator Alt 0188 ¼ Quarter Alt 0189 ½ Half Alt 0190 ¾ Three quarters Alt 46 . Decimal Point Alt Codes for Equality Alt Code Symbol Description Alt 240 ≡ Exactly Identical Alt 61 = Equals Alt 247 ≈ Approximately equal Alt Codes for Inequality Alt Code Symbol Description Alt 60 < Less Than Alt 62 > Greater Than Alt 242 ≥ Greater than or equal Alt 243 ≤ Less than or equal Alt Codes for Powers Alt Code Symbol Description Alt 251 √ Square Root Alt 252 ⁿ Power n Alt 0185 ¹ To the power of 1 Alt 0178 ² squared Alt 0179 ³ cubed Angles and Trigonometric Alt Codes Alt Code Symbol Description Alt 227 π Pi Alt 248 ° Degree sign See also Greek Alphabet Alt Codes General Mathematical Symbols Alt Code Symbol Description Alt 35 # Number Alt 236 ∞ Infinity Alt 230 µ Micro Alt 228 Σ Sum Alt 239 ∩ Suggest definition Integration / Integral SignAlt Code Symbol Description Alt 244 ⌠ Top half Alt 245 <br />