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c++ Programming Glossary: multiply

How to add two numbers without using ++ or + or another arithmetic operator

http://stackoverflow.com/questions/1149929/how-to-add-two-numbers-without-using-or-or-another-arithmetic-operator

int n return n 1 int divide_by_two int n return n 1 int multiply_by_two int n return n 1 int multiply int x int y int result.. int n return n 1 int multiply_by_two int n return n 1 int multiply int x int y int result 0 if x 0 y 0 return multiply negate x.. 1 int multiply int x int y int result 0 if x 0 y 0 return multiply negate x negate y if x 0 y 0 return multiply y x while y 0 if..

C++ handling very large integers

http://stackoverflow.com/questions/124332/c-handling-very-large-integers

0x63 encryption.cpp undefined reference to `BigInteger multiply BigInteger const BigInteger const ' So I was wondering what..

How do I gaussian blur an image without using any in-built gaussian functions?

http://stackoverflow.com/questions/1696113/how-do-i-gaussian-blur-an-image-without-using-any-in-built-gaussian-functions

to load pixels 0 1 2 10 11 12 20 21 22. you would then multiply pixel 0 by the upper left portion of the 3x3 blur filter. Pixel.. above. e.g if your row is 0.1 0.2 0.4 0.2 0.1 then if you multiply each value in their by the first item to form a column and then.. value in their by the first item to form a column and then multiply each by the second item to form the second column and so on..

How do I start a new CUDA project in Visual Studio 2008?

http://stackoverflow.com/questions/2046228/how-do-i-start-a-new-cuda-project-in-visual-studio-2008

defaultlib 'LIBCMT' conflicts with use of other libs or multiply defined symbols for standard library functions then this should..

Multiple definition of inline functions when linking static libs

http://stackoverflow.com/questions/2217628/multiple-definition-of-inline-functions-when-linking-static-libs

these The answer to this question was that the poster was multiply defining variables my problem is multiple definition of inline..

Performance of built-in types : char vs short vs int vs. float vs. double

http://stackoverflow.com/questions/5069489/performance-of-built-in-types-char-vs-short-vs-int-vs-float-vs-double

categories high demand low demand high complexity FP add multiply division low complexity integer add popcount hcf boolean ops.. to pay an extra 3 for your toaster to have a fast FP multiply however so cheap CPUs will skimp on these instructions. low..

What does T&& (double ampersand) mean in C++11?

http://stackoverflow.com/questions/5481539/what-does-t-double-ampersand-mean-in-c11

takes 1 parameter but each additional parameter would multiply the necessary overload set by 2. That's very quickly unmaintainable...

Is multiplication and division using shift operators in C actually faster?

http://stackoverflow.com/questions/6357038/is-multiplication-and-division-using-shift-operators-in-c-actually-faster

i 1 and so on. Is it actually faster to use say i 3 i 1 to multiply with 10 than using i 10 directly Is there any sort of input.. Your compiler has an optimizer in it that knows how to multiply as quickly as your target processor architecture is capable... possible that the processor itself has implemented the multiply instruction as a sequence of shifts adds in microcode. Bottom..

Floating point keys in std:map

http://stackoverflow.com/questions/6684573/floating-point-keys-in-stdmap

will always be false . My current workaround is just multiply t by 0.1 instead of adding 0.1 like this for int i 0 i 31 i..

Convert string to int C++

http://stackoverflow.com/questions/7663709/convert-string-to-int-c

then look to see if there was a leading ' ' if there is multiply the int by 1. It seems a bit over complicated for such a small..

What is a good random number generator for a game?

http://stackoverflow.com/questions/1046714/what-is-a-good-random-number-generator-for-a-game

some of the best and fastest RNGs currently available Multiply with carry being a notable one for a uniform distribution. ..

C++ Tips for code optimization on ARM devices

http://stackoverflow.com/questions/10800372/c-tips-for-code-optimization-on-arm-devices

sin cos Use logical shifts to divide or multiply by 2. Multiply by the inverse when possible. 2 Optimize inner for loops they..

How to do alpha blend fast?

http://stackoverflow.com/questions/1102692/how-to-do-alpha-blend-fast

Add the above to a vector that is all 255 in every slot Multiply 1 4 source with 255 alpha and 2 3 result with alpha . You should.. maskInv _mm_subs_epu8 _mm_set1_epu8 255 mask Todo Multiply with saturate find correct instructions for 4..6 note you can.. find correct instructions for 4..6 note you can use Multiply and add _mm_madd_epi16 alpha maskCurrent red srcByteTop R alpha..

OpenGL and GLUT in Eclipse on OS X

http://stackoverflow.com/questions/2068693/opengl-and-glut-in-eclipse-on-os-x

GL_DEPTH_BUFFER_BIT Load identity matrix glLoadIdentity Multiply in translation matrix glTranslatef 0 0 10 Multiply in rotation.. Multiply in translation matrix glTranslatef 0 0 10 Multiply in rotation matrix glRotatef angle 0 0 1 Render colored quad..

How can I write a power function myself?

http://stackoverflow.com/questions/2882706/how-can-i-write-a-power-function-myself

approximation like bisection or Newton method could work . Multiply the result. If the exponent was negative apply the inverse...

Is there an alternative to using % (modulus) in C/C++?

http://stackoverflow.com/questions/48053/is-there-an-alternative-to-using-modulus-in-c-c

compute the modulo 7 result for the high and low bytes. Multiply the result for the high by 4 and add it to the low and then..

How does photoshop blend two images together?

http://stackoverflow.com/questions/5919663/how-does-photoshop-blend-two-images-together

ChannelBlend_Darken A B uint8 B A A B #define ChannelBlend_Multiply A B uint8 A B 255 #define ChannelBlend_Average A B uint8 A B.. T A B ColorBlend_Buffer T A B Darken #define ColorBlend_Multiply T A B ColorBlend_Buffer T A B Multiply #define ColorBlend_Average.. #define ColorBlend_Multiply T A B ColorBlend_Buffer T A B Multiply #define ColorBlend_Average T A B ColorBlend_Buffer T A B Average..

How to determine CPU and memory consumption from inside a process?

http://stackoverflow.com/questions/63166/how-to-determine-cpu-and-memory-consumption-from-inside-a-process

Memory and then long long totalPhysMem memInfo.totalram Multiply in next statement to avoid int overflow on right hand side..... long long physMemUsed memInfo.totalram memInfo.freeram Multiply in next statement to avoid int overflow on right hand side.....

Optimizations for pow() with const non-integer exponent?

http://stackoverflow.com/questions/6475373/optimizations-for-pow-with-const-non-integer-exponent

asm cvtdq2ps 1 0 x ret x ret std printf log vg n ret Multiply logarithm by power. ret _mm_mul_ps ret _mm_set1_ps 1. expnum.. asm cvtdq2ps 1 0 x ret x ret std printf log vg n ret Multiply logarithm by power. ret _mm_mul_ps ret _mm_set1_ps 1. expnum..

how to achieve 4 FLOPs per cycle

http://stackoverflow.com/questions/8389648/how-to-achieve-4-flops-per-cycle

Haswell and AMD Bulldozer processors and later FMA Fused Multiply Add instructions will be needed. These are beyond the scope..

How to project a 3d point to a 3d plane

http://stackoverflow.com/questions/9605556/how-to-project-a-3d-point-to-a-3d-plane

scalar distance from point to plane along the normal 3 Multiply the normal vector by the distance and subtract that vector from..

Using Quaternions for OpenGL Rotations

http://stackoverflow.com/questions/9715776/using-quaternions-for-opengl-rotations

Rotation.x m_Rotation.y Rotation.y m_Rotation.z Rotation.z Multiply the new Quaternion by the current one. m_qRotation Quaternion.. this guide . If the latter my code would look like this Multiply the new Quaternion by the current one. m_qRotation Quaternion..