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255 lines
No EOL
9.5 KiB
C++
255 lines
No EOL
9.5 KiB
C++
topic "Math utility";
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[2 $$0,0#00000000000000000000000000000000:Default]
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[i448;a25;kKO9;2 $$1,0#37138531426314131252341829483380:class]
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[l288;2 $$2,0#27521748481378242620020725143825:desc]
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[0 $$3,0#96390100711032703541132217272105:end]
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[H6;0 $$4,0#05600065144404261032431302351956:begin]
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[i448;a25;kKO9;2 $$5,0#37138531426314131252341829483370:item]
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[l288;a4;*@5;1 $$6,6#70004532496200323422659154056402:requirement]
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[l288;i1121;b17;O9;~~~.1408;2 $$7,0#10431211400427159095818037425705:param]
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[i448;b42;O9;2 $$8,8#61672508125594000341940100500538:tparam]
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[b42;2 $$9,9#13035079074754324216151401829390:normal]
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[{_}
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[ {{10000@(113.42.0) [s0;%% [*@7;4 Math utility]]}}&]
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[s3; &]
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[s0;%% A number of mathematical functions and constants.&]
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[s3; &]
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[s0; &]
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[ {{10000F(128)G(128)@1 [s0;%% [* Constant List]]}}&]
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[s3; &]
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[s5;:M`_E: [* M`_E]&]
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[s2;%% [/ e-|-|-|]2.71828182845904523536&]
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[s3;%% &]
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[s4; &]
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[s5;:M`_LOG2E: [* M`_LOG2E]&]
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[s2;%% [/ log][/, 2][/ e-|-|-|]1.44269504088896340736&]
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[s3;%% &]
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[s4; &]
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[s5;:M`_LOG10E: [* M`_LOG10E]&]
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[s2;%% [/ log10e]-|-|-|0.434294481903251827651&]
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[s3;%% &]
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[s4; &]
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[s5;:M`_LN2: [* M`_LN2]&]
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[s2;%% [/ ln2]-|-|-|0.693147180559945309417&]
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[s3;%% &]
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[s4; &]
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[s5;:M`_LN10: [* M`_LN10]&]
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[s2;%% [/ ln10]-|-|-|2.30258509299404568402&]
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[s3;%% &]
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[s4; &]
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[s5;:M`_PI: [* M`_PI]&]
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[s2;%% [/ Pi]-|-|-|3.14159265358979323846&]
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[s3;%% &]
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[s4; &]
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[s5;:M`_PI`_2: [* M`_PI`_2]&]
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[s2;%% [/ Pi / 2]-|-|-|1.57079632679489661923&]
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[s3;%% &]
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[s4; &]
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[s5;:M`_PI`_4: [* M`_PI`_4]&]
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[s2;%% [/ Pi / 4]-|-|-|0.785398163397448309616&]
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[s3;%% &]
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[s4; &]
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[s5;:M`_1`_PI: [* M`_1`_PI]&]
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[s2;%% [/ 1 / Pi]-|-|-|0.318309886183790671538&]
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[s3;%% &]
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[s4; &]
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[s5;:M`_2`_PI: [* M`_2`_PI]&]
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[s2;%% [/ 2 / Pi]-|-|-|0.636619772367581343076&]
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[s3;%% &]
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[s4; &]
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[s5;:M`_1`_SQRTPI: [* M`_1`_SQRTPI]&]
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[s2;%% [/ 1 / sqrt(Pi)]-|-|0.564189583547756286948&]
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[s3;%% &]
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[s4; &]
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[s5;:M`_2`_SQRTPI: [* M`_2`_SQRTPI]&]
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[s2;%% [/ 2 / sqrt(Pi)]-|-|1.12837916709551257390&]
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[s3;%% &]
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[s4; &]
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[s5;:M`_SQRT2: [* M`_SQRT2]&]
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[s2;%% 1.41421356237309504880&]
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[s3;%% &]
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[s4; &]
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[s5;:M`_SQRT`_2: [* M`_SQRT`_2]&]
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[s2;%% 0.707106781186547524401&]
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[s3;%% &]
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[s4; &]
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[s5;:M`_2PI: [* M`_2PI]&]
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[s2;%% [/ 2Pi]&]
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[s3; &]
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[s0;%% &]
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[ {{10000F(128)G(128)@1 [s0;%% [* Function List]]}}&]
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[s3; &]
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[s5;:Random`(`): [_^topic`:`/`/Core`/src`/PrimitiveDataTypes`$en`-us`#Upp`:`:dword`:`:typedef^ d
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word]_[* Random]()&]
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[s2;%% Returns the next random generated number. MT safe and efficient
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variant of Merssene twister MT19937 by Takuji Nishimura and Makoto
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Matsumoto is used to get random numbers, with the seed obtained
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from host platform specific resources (`'/dev/urandom`' in Posix
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systems, GUID generator in Win32).&]
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[s3;%% &]
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[s4; &]
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[s5;:SeedRandom`(dword`*`,int`): [@(0.0.255) void]_[* SeedRandom]([_^topic`:`/`/Core`/src`/PrimitiveDataTypes`$en`-us`#Upp`:`:dword`:`:typedef^ d
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word]_`*[*@3 seed],[@(0.0.255) int]_[*@3 len])&]
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[s2;%% Seeds random with buffer.&]
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[s3;%% &]
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[s4; &]
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[s5;:SeedRandom`(dword`): [@(0.0.255) void]_[* SeedRandom]([_^topic`:`/`/Core`/src`/PrimitiveDataTypes`$en`-us`#Upp`:`:dword`:`:typedef^ d
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word]_[*@3 seed]_`=_[@3 0])&]
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[s2;%% Seeds random with single value [%-*@3 seed]. This is good to
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get always the same sequence of numbers (for the same seed).&]
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[s3;%% &]
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[s4; &]
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[s5;:ZeroArray`(x`): [* ZeroArray]([*@3 x])&]
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[s2;%% Fills C array [%-*@3 x] with zeros.&]
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[s3;%% &]
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[s4; &]
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[s5;:Random`(dword`): [_^topic`:`/`/Core`/src`/PrimitiveDataTypes`$en`-us`#Upp`:`:dword`:`:typedef^ d
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word]_[* Random]([_^topic`:`/`/Core`/src`/PrimitiveDataTypes`$en`-us`#Upp`:`:dword`:`:typedef^ d
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word]_[*@3 n])&]
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[s2; Returns the next random generated number smaller than [*@3 n].&]
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[s3;%% &]
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[s4; &]
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[s5;:Random64`(`): [_^topic`:`/`/Core`/src`/PrimitiveDataTypes`$en`-us`#Upp`:`:qword`:`:typedef^ q
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word]_[* Random64]()&]
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[s2;%% Returns the 64bit random number.&]
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[s3; &]
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[s4; &]
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[s5;:Random64`(qword`): [_^topic`:`/`/Core`/src`/PrimitiveDataTypes`$en`-us`#Upp`:`:qword`:`:typedef^ q
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word]_[* Random64]([_^topic`:`/`/Core`/src`/PrimitiveDataTypes`$en`-us`#Upp`:`:qword`:`:typedef^ q
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word]_[*@3 n])&]
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[s2; [%% Returns the 64bit random number] smaller than [*@3 n].&]
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[s3;%% &]
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[s4; &]
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[s5;:Randomf`(`): [@(0.0.255) double]_[* Randomf]()&]
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[s2;%% Returns the floating point number 0..1.&]
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[s3; &]
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[s4; &]
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[s5;:sqr`(double`): [@(0.0.255) double]_[* sqr]_([@(0.0.255) double]_[*@3 a])&]
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[s2;%% Returns the square of [%-*@3 a].&]
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[s3;%% &]
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[s4; &]
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[s5;:argsinh`(double`): [@(0.0.255) double]_[* argsinh]_([@(0.0.255) double]_[*@3 s])&]
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[s2;%% Returns the hyperbolic arcsin of [%-*@3 s].&]
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[s3;%% &]
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[s4; &]
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[s5;:argcosh`(double`): [@(0.0.255) double]_[* argcosh]_([@(0.0.255) double]_[*@3 c])&]
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[s2;%% Returns the hyperbolic arcsin of [%-*@3 c].&]
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[s3;%% &]
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[s4; &]
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[s5;:argtanh`(double`): [@(0.0.255) double]_[* argtanh]_([@(0.0.255) double]_[*@3 t])&]
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[s2;%% Returns the hyperbolic arctan of [%-*@3 t].&]
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[s3;%% &]
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[s4; &]
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[s5;:iscale`(int`,int`,int`): [@(0.0.255) int]_[* iscale]([@(0.0.255) int]_[*@3 x],
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[@(0.0.255) int]_[*@3 y], [@(0.0.255) int]_[*@3 z])&]
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[s2;%% Returns [%-*@3 x] `* [%-*@3 y] / [%-*@3 z].&]
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[s3;%% &]
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[s4; &]
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[s5;:iscalefloor`(int`,int`,int`): [@(0.0.255) int]_[* iscalefloor]([@(0.0.255) int]_[*@3 x],
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[@(0.0.255) int]_[*@3 y], [@(0.0.255) int]_[*@3 z])&]
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[s2;%% Returns [%-*@3 x] `* [%-*@3 y] / [%-*@3 z][%-* ,][%- rounded towards
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negative infinity].&]
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[s3;%% &]
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[s4; &]
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[s5;:iscaleceil`(int`,int`,int`): [@(0.0.255) int]_[* iscaleceil]([@(0.0.255) int]_[*@3 x],
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[@(0.0.255) int]_[*@3 y], [@(0.0.255) int]_[*@3 z])&]
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[s2;%% Returns [%-*@3 x] `* [%-*@3 y] / [%-*@3 z][%-* ,][%- rounded towards
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positive infinity].&]
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[s3;%% &]
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[s4; &]
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[s5;:idivfloor`(int`,int`): [@(0.0.255) int]_[* idivfloor]([@(0.0.255) int]_[*@3 x],
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[@(0.0.255) int]_[*@3 y])&]
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[s2;%% Returns [%-*@3 x] / [%-*@3 y], truncated towards [%- negative infinity].&]
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[s3;%% &]
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[s4; &]
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[s5;:idivceil`(int`,int`): [@(0.0.255) int]_[* idivceil]([@(0.0.255) int]_[*@3 x],
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[@(0.0.255) int]_[*@3 y])&]
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[s2;%% Returns [%-*@3 x] / [%-*@3 y], truncated towards [%- positive infinity].&]
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[s3;%% &]
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[s4; &]
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[s5;:itimesfloor`(int`,int`): [@(0.0.255) int]_[* itimesfloor]([@(0.0.255) int]_[*@3 x],
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[@(0.0.255) int]_[*@3 y])&]
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[s2; Moves [*@3 x] to nearest lower multiple of [*@3 y].&]
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[s3;%% &]
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[s4; &]
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[s5;:itimesceil`(int`,int`): [@(0.0.255) int]_[* itimesceil]([@(0.0.255) int]_[*@3 x],
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[@(0.0.255) int]_[*@3 y])&]
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[s2; Moves [*@3 x] to nearest higher multiple of [*@3 y].&]
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[s3;%% &]
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[s4; &]
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[s5;:fround`(double`): [@(0.0.255) int]_[* fround]([@(0.0.255) double]_[*@3 x])&]
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[s2; Converts double [*@3 x ]to nearest integer. Checks integer limits.&]
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[s3;%% &]
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[s4; &]
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[s5;:ffloor`(double`): [@(0.0.255) int]_[* ffloor]([@(0.0.255) double]_[*@3 x])&]
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[s2; Converts double [*@3 x ]to integer rounding towards negative infinity.
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Checks integer limits.&]
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[s3;%% &]
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[s4; &]
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[s5;:fceil`(double`): [@(0.0.255) int]_[* fceil]([@(0.0.255) double]_[*@3 x])&]
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[s2; Converts double [*@3 x ]to integer rounding towards `+infinity.
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Checks integer limits.&]
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[s3;%% &]
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[s4; &]
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[s5;:fround64`(double`): [_^topic`:`/`/Core`/src`/PrimitiveDataTypes`$en`-us`#Upp`:`:int64`:`:typedef^ i
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nt64]_[* fround64]([@(0.0.255) double]_[*@3 x])&]
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[s2; Converts double [*@3 x ]to nearest integer. Checks integer limits.&]
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[s3;%% &]
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[s4; &]
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[s5;:ffloor64`(double`): [_^topic`:`/`/Core`/src`/PrimitiveDataTypes`$en`-us`#Upp`:`:int64`:`:typedef^ i
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nt64]_[* ffloor64]([@(0.0.255) double]_[*@3 x])&]
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[s2; Converts double [*@3 x ]to integer rounding towards negative infinity.
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Checks integer limits.&]
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[s3;%% &]
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[s4; &]
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[s5;:fceil64`(double`): [_^topic`:`/`/Core`/src`/PrimitiveDataTypes`$en`-us`#Upp`:`:int64`:`:typedef^ i
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nt64]_[* fceil64]([@(0.0.255) double]_[*@3 x])&]
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[s2; Converts double [*@3 x ]to integer rounding towards `+infinity.
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Checks integer limits.&]
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[s3;%% &]
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[s4; &]
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[s5;:modulo`(double`,double`): [@(0.0.255) double]_[* modulo]([@(0.0.255) double]_[*@3 x],
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[@(0.0.255) double]_[*@3 y])&]
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[s2;%% Returns the floating`-point remainder of [%-*@3 x]/[%-*@3 y].&]
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[s2;%% &]
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[s2;%% The remainder of a division operation is the result of subtracting
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the integral quotient multiplied by the denominator from the
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numerator:&]
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[s2;%% &]
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[s2;%% remainder `= numerator `- quotient `* denominator.&]
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[s3;%% &]
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[s4; &]
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[s5;:ilog10`(double`): [@(0.0.255) int]_[* ilog10]_([@(0.0.255) double]_[*@3 d])&]
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[s2;%% [%-*@3 d].&]
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[s3;%% &]
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[s4; &]
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[s5;:ipow10`(int`): [@(0.0.255) double]_[* ipow10]_([@(0.0.255) int]_[*@3 i])&]
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[s2;%% [%-*@3 i].&]
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[s3;%% &]
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[s4; &]
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[s5;:normalize`(double`,int`&`): [@(0.0.255) double]_[* normalize]_([@(0.0.255) double]_[*@3 d
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], [@(0.0.255) int`&]_[*@3 exponent])&]
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[s2;%% [%-*@3 d] [%-*@3 exponent].&]
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[s3;%% &]
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[s4; &]
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[s5;:roundr`(double`,int`): [@(0.0.255) double]_[* roundr]_([@(0.0.255) double]_[*@3 d],
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[@(0.0.255) int]_[*@3 digits])&]
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[s2;%% [%-*@3 d] [%-*@3 digits].&]
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[s3;%% &]
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[s4; &]
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[s5;:floorr`(double`,int`): [@(0.0.255) double]_[* floorr]_([@(0.0.255) double]_[*@3 d],
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[@(0.0.255) int]_[*@3 digits])&]
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[s2;%% [%-*@3 d] [%-*@3 digits].&]
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[s3;%% &]
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[s4; &]
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[s5;:ceilr`(double`,int`): [@(0.0.255) double]_[* ceilr]_([@(0.0.255) double]_[*@3 d],
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[@(0.0.255) int]_[*@3 digits])&]
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[s2;%% [%-*@3 d] [%-*@3 digits].&]
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[s3;%% &]
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[s4; &]
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[s5;:AsString`(double`,int`): [_^topic`:`/`/Core`/src`/String`$en`-us`#String`:`:class^ S
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tring]_[* AsString]([@(0.0.255) double]_[*@3 x], [@(0.0.255) int]_[*@3 nDigits])&]
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[s2;%% [%- Returns the string representation of ][%-*@3 x][%- with] [%-*@3 nDigits][%-
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precision].&]
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[s3; &]
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[s0; ]] |