operators operands

This is a discussion on operators operands within the C Programming forums, part of the General Programming Boards category; I've been looking for hours all over the net for just a simple list of the arithmetic operators, that can ...

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    operators operands

    I've been looking for hours all over the net for just a simple list of the arithmetic operators, that can be used in C, and the syntax of operators and operands, but I can't find one. Can anybody tell me where one is?

    I simply want to raise one floating point variable to a floating point power.

    Also, I noticed that if i simply try to assign to a float variable, one integer divided by another, the compiler rounds the variable's value off to an integer, but displays a bunch of zeros after a decimal point. If I divide one float variable by another, I get a (thing on the left i forgot what its called) and a mantissa. Is the program "type-casting" the variable, changing its type? I'm confused. If it was, it wouldn't display the dec point and zeros, it would seem to me.
    soil has soul

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    Budding Synth Programmer samGwilliam's Avatar
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    #include <math.h>
    .
    .
    .
    float a = 4.55;
    float b = 3.58;
    float c = pow (a, b); // a to power of b.
    MSVC++ 6.0

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    Thanks SamGwilliam -- I was able to get my computer to exponentiate, using the information you provided in your example. I did, however, as I had before, have to say something like...

    float a;
    a = 4.55;


    to it, rather than telling it...

    float a = 4.55;

    -- because this sort of declaration caused it to respond with "Error blah blah blah."

    Perhaps this is correct syntax in another compiler, but Borland Turbo C 2.01 (circa 1989) didn't like it.
    soil has soul

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    I'm still looking for a simple list of the arithmetic operators, that can be used in C, and the syntax of operators and operands. I having trouble deducing these from the math.h file.
    soil has soul

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    Try this, itīs an ANSII-C-reference.

    klausi
    When I close my eyes nobody can see me...

  6. #6
    and the hat of int overfl Salem's Avatar
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    > I've been looking for hours all over the net for just a simple list of the arithmetic operators
    The only floating point operators which C supports "out of the box" are +,-,*,/

    Everything else (log, exponents etc) can all be found as functions in math.h

    > Perhaps this is correct syntax in another compiler, but Borland Turbo C 2.01 (circa 1989) didn't like it.
    Shouldn't be a problem - though your very OLD (and pre-ANSI) compiler should really be replaced with something more up to date

    Many excellent free compilers can be found here
    www.compilers.net

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    Thanks klausi. Looks like one of the better references on the web (I finally managed to find a few).


    Thanks Salem. I'm thinking about buying Borland Turbo C/C++ Suite. It includes a C tutorial, not just a tutorial on using their ide.

    Since I'm just learning fundamentals, I don't need a comprehensive set of features yet. Though I like a good ide to save time.

    I downloaded djgpp already. It looks very complete. But it also has a very complex installation procedure. I have't installed it yet.
    soil has soul

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