acosh
Description
Syntax
acosh( float $num ): float
Parameters
num
The value to process
Return
The inverse hyperbolic cosine of num
Examples
1 · num · single
<? $num = cosh(deg2rad(0)); $return = acosh($num); echo $return;
0
2 · num · multiple
<? for($i = -180; $i <= 180; ++$i) { $num = cosh(deg2rad($i)); $return = acosh($num); echo "$i: $return" . PHP_EOL; }
-180: 3.1415926535898 -179: 3.1241393610699 -178: 3.1066860685499 -177: 3.08923277603 -176: 3.07177948351 -175: 3.0543261909901 -174: 3.0368728984701 -173: 3.0194196059502 -172: 3.0019663134302 -171: 2.9845130209103 -170: 2.9670597283904 -169: 2.9496064358704 -168: 2.9321531433505 -167: 2.9146998508305 -166: 2.8972465583106 -165: 2.8797932657906 -164: 2.8623399732707 -163: 2.8448866807508 -162: 2.8274333882308 -161: 2.8099800957109 -160: 2.7925268031909 -159: 2.775073510671 -158: 2.757620218151 -157: 2.7401669256311 -156: 2.7227136331112 -155: 2.7052603405912 -154: 2.6878070480713 -153: 2.6703537555513 -152: 2.6529004630314 -151: 2.6354471705114 -150: 2.6179938779915 -149: 2.6005405854716 -148: 2.5830872929516 -147: 2.5656340004317 -146: 2.5481807079117 -145: 2.5307274153918 -144: 2.5132741228718 -143: 2.4958208303519 -142: 2.4783675378319 -141: 2.460914245312 -140: 2.4434609527921 -139: 2.4260076602721 -138: 2.4085543677522 -137: 2.3911010752322 -136: 2.3736477827123 -135: 2.3561944901923 -134: 2.3387411976724 -133: 2.3212879051525 -132: 2.3038346126325 -131: 2.2863813201126 -130: 2.2689280275926 -129: 2.2514747350727 -128: 2.2340214425527 -127: 2.2165681500328 -126: 2.1991148575129 -125: 2.1816615649929 -124: 2.164208272473 -123: 2.146754979953 -122: 2.1293016874331 -121: 2.1118483949131 -120: 2.0943951023932 -119: 2.0769418098733 -118: 2.0594885173533 -117: 2.0420352248334 -116: 2.0245819323134 -115: 2.0071286397935 -114: 1.9896753472735 -113: 1.9722220547536 -112: 1.9547687622336 -111: 1.9373154697137 -110: 1.9198621771938 -109: 1.9024088846738 -108: 1.8849555921539 -107: 1.8675022996339 -106: 1.850049007114 -105: 1.832595714594 -104: 1.8151424220741 -103: 1.7976891295542 -102: 1.7802358370342 -101: 1.7627825445143 -100: 1.7453292519943 -99: 1.7278759594744 -98: 1.7104226669544 -97: 1.6929693744345 -96: 1.6755160819146 -95: 1.6580627893946 -94: 1.6406094968747 -93: 1.6231562043547 -92: 1.6057029118348 -91: 1.5882496193148 -90: 1.5707963267949 -89: 1.553343034275 -88: 1.535889741755 -87: 1.5184364492351 -86: 1.5009831567151 -85: 1.4835298641952 -84: 1.4660765716752 -83: 1.4486232791553 -82: 1.4311699866354 -81: 1.4137166941154 -80: 1.3962634015955 -79: 1.3788101090755 -78: 1.3613568165556 -77: 1.3439035240356 -76: 1.3264502315157 -75: 1.3089969389957 -74: 1.2915436464758 -73: 1.2740903539559 -72: 1.2566370614359 -71: 1.239183768916 -70: 1.221730476396 -69: 1.2042771838761 -68: 1.1868238913561 -67: 1.1693705988362 -66: 1.1519173063163 -65: 1.1344640137963 -64: 1.1170107212764 -63: 1.0995574287564 -62: 1.0821041362365 -61: 1.0646508437165 -60: 1.0471975511966 -59: 1.0297442586767 -58: 1.0122909661567 -57: 0.99483767363677 -56: 0.97738438111682 -55: 0.95993108859688 -54: 0.94247779607694 -53: 0.92502450355699 -52: 0.90757121103705 -51: 0.89011791851711 -50: 0.87266462599716 -49: 0.85521133347722 -48: 0.83775804095728 -47: 0.82030474843734 -46: 0.80285145591739 -45: 0.78539816339745 -44: 0.7679448708775 -43: 0.75049157835756 -42: 0.73303828583762 -41: 0.71558499331768 -40: 0.69813170079773 -39: 0.68067840827779 -38: 0.66322511575785 -37: 0.6457718232379 -36: 0.62831853071796 -35: 0.61086523819802 -34: 0.59341194567807 -33: 0.57595865315813 -32: 0.55850536063819 -31: 0.54105206811824 -30: 0.5235987755983 -29: 0.50614548307836 -28: 0.48869219055841 -27: 0.47123889803847 -26: 0.45378560551853 -25: 0.43633231299858 -24: 0.41887902047864 -23: 0.4014257279587 -22: 0.38397243543875 -21: 0.36651914291881 -20: 0.34906585039887 -19: 0.33161255787892 -18: 0.31415926535898 -17: 0.29670597283904 -16: 0.27925268031909 -15: 0.26179938779915 -14: 0.24434609527921 -13: 0.22689280275926 -12: 0.20943951023932 -11: 0.19198621771938 -10: 0.17453292519943 -9: 0.15707963267949 -8: 0.13962634015955 -7: 0.1221730476396 -6: 0.10471975511966 -5: 0.087266462599717 -4: 0.069813170079772 -3: 0.052359877559828 -2: 0.034906585039886 -1: 0.017453292519938 0: 0 1: 0.017453292519938 2: 0.034906585039886 3: 0.052359877559828 4: 0.069813170079772 5: 0.087266462599717 6: 0.10471975511966 7: 0.1221730476396 8: 0.13962634015955 9: 0.15707963267949 10: 0.17453292519943 11: 0.19198621771938 12: 0.20943951023932 13: 0.22689280275926 14: 0.24434609527921 15: 0.26179938779915 16: 0.27925268031909 17: 0.29670597283904 18: 0.31415926535898 19: 0.33161255787892 20: 0.34906585039887 21: 0.36651914291881 22: 0.38397243543875 23: 0.4014257279587 24: 0.41887902047864 25: 0.43633231299858 26: 0.45378560551853 27: 0.47123889803847 28: 0.48869219055841 29: 0.50614548307836 30: 0.5235987755983 31: 0.54105206811824 32: 0.55850536063819 33: 0.57595865315813 34: 0.59341194567807 35: 0.61086523819802 36: 0.62831853071796 37: 0.6457718232379 38: 0.66322511575785 39: 0.68067840827779 40: 0.69813170079773 41: 0.71558499331768 42: 0.73303828583762 43: 0.75049157835756 44: 0.7679448708775 45: 0.78539816339745 46: 0.80285145591739 47: 0.82030474843734 48: 0.83775804095728 49: 0.85521133347722 50: 0.87266462599716 51: 0.89011791851711 52: 0.90757121103705 53: 0.92502450355699 54: 0.94247779607694 55: 0.95993108859688 56: 0.97738438111682 57: 0.99483767363677 58: 1.0122909661567 59: 1.0297442586767 60: 1.0471975511966 61: 1.0646508437165 62: 1.0821041362365 63: 1.0995574287564 64: 1.1170107212764 65: 1.1344640137963 66: 1.1519173063163 67: 1.1693705988362 68: 1.1868238913561 69: 1.2042771838761 70: 1.221730476396 71: 1.239183768916 72: 1.2566370614359 73: 1.2740903539559 74: 1.2915436464758 75: 1.3089969389957 76: 1.3264502315157 77: 1.3439035240356 78: 1.3613568165556 79: 1.3788101090755 80: 1.3962634015955 81: 1.4137166941154 82: 1.4311699866354 83: 1.4486232791553 84: 1.4660765716752 85: 1.4835298641952 86: 1.5009831567151 87: 1.5184364492351 88: 1.535889741755 89: 1.553343034275 90: 1.5707963267949 91: 1.5882496193148 92: 1.6057029118348 93: 1.6231562043547 94: 1.6406094968747 95: 1.6580627893946 96: 1.6755160819146 97: 1.6929693744345 98: 1.7104226669544 99: 1.7278759594744 100: 1.7453292519943 101: 1.7627825445143 102: 1.7802358370342 103: 1.7976891295542 104: 1.8151424220741 105: 1.832595714594 106: 1.850049007114 107: 1.8675022996339 108: 1.8849555921539 109: 1.9024088846738 110: 1.9198621771938 111: 1.9373154697137 112: 1.9547687622336 113: 1.9722220547536 114: 1.9896753472735 115: 2.0071286397935 116: 2.0245819323134 117: 2.0420352248334 118: 2.0594885173533 119: 2.0769418098733 120: 2.0943951023932 121: 2.1118483949131 122: 2.1293016874331 123: 2.146754979953 124: 2.164208272473 125: 2.1816615649929 126: 2.1991148575129 127: 2.2165681500328 128: 2.2340214425527 129: 2.2514747350727 130: 2.2689280275926 131: 2.2863813201126 132: 2.3038346126325 133: 2.3212879051525 134: 2.3387411976724 135: 2.3561944901923 136: 2.3736477827123 137: 2.3911010752322 138: 2.4085543677522 139: 2.4260076602721 140: 2.4434609527921 141: 2.460914245312 142: 2.4783675378319 143: 2.4958208303519 144: 2.5132741228718 145: 2.5307274153918 146: 2.5481807079117 147: 2.5656340004317 148: 2.5830872929516 149: 2.6005405854716 150: 2.6179938779915 151: 2.6354471705114 152: 2.6529004630314 153: 2.6703537555513 154: 2.6878070480713 155: 2.7052603405912 156: 2.7227136331112 157: 2.7401669256311 158: 2.757620218151 159: 2.775073510671 160: 2.7925268031909 161: 2.8099800957109 162: 2.8274333882308 163: 2.8448866807508 164: 2.8623399732707 165: 2.8797932657906 166: 2.8972465583106 167: 2.9146998508305 168: 2.9321531433505 169: 2.9496064358704 170: 2.9670597283904 171: 2.9845130209103 172: 3.0019663134302 173: 3.0194196059502 174: 3.0368728984701 175: 3.0543261909901 176: 3.07177948351 177: 3.08923277603 178: 3.1066860685499 179: 3.1241393610699 180: 3.1415926535898