摘要 这些网页的目的主要是为了让Matlab新手能在最短的时间内掌 握Matlab这个工具, 完成自己的任务, 成为一个proficient Matlab consumer, 而非Matlab professor.

 本页面所涉及的操作已录制Matlab视频教程, 请从此处: //JavaScript should be enabled to display URL of demo video pages! var fName=window.location.pathname; var fName=fName.substring(1+Math.max(fName.lastIndexOf('/'),fName.lastIndexOf('\\')),fName.length-4) document.write('观看Matlab操作演示录像

'); 观看Matlab操作演示录像

 

常用数学函数, 一般这些函数不仅可以对标量运算, 也可以对数组中每个元素运 算, 返回同样大小的结果数组. 第1部分 生成复数

Matlab中可以将复数当作普通数值进行操作, 生成复数的方法: f=1+2i, 即可, 注 意如果已有a=1,b=3,
c=a+b*i %从已有变量生成复数记得加乘号.

 

第2部分 三角函数

懒得翻译了, 如果看不懂这里的E文, 用google搜索个网络词典吧.

• acos, Inverse cosine; result in radians
• acosd, Inverse cosine; result in degrees
• acosh, Inverse hyperbolic cosine
• acot, Inverse cotangent; result in radians
• acotd, Inverse cotangent; result in degrees
• acoth, Inverse hyperbolic cotangent
• acsc, Inverse cosecant; result in radians
• acscd, Inverse cosecant; result in degrees
• acsch, Inverse hyperbolic cosecant
• asec, Inverse secant; result in radians
• asecd, Inverse secant; result in degrees
• asech, Inverse hyperbolic secant
• asin, Inverse sine; result in radians
• asind, Inverse sine; result in degrees
• asinh, Inverse hyperbolic sine
• atan, Inverse tangent; result in radians
• atan2, Four-quadrant inverse tangent
• atand, Inverse tangent; result in degrees
• atanh, Inverse hyperbolic tangent
• cos, Cosine of argument in radians
• cosd, Cosine ofo argument in degrees
• cosh, Hyperbolic cosine
• cot, Cotangent of argument in radians
• cotd, Cotangent of argument in degrees
• coth, Hyperbolic cotangent
• csc, Cosecant of argument in radians
• cscd, Cosecant of argument in degrees
• csch, Hyperbolic cosecant
• hypot, Square root of sum of squares
• sec, Secant of argument in radians
• secd, Secant of argument in degrees
• sech, Hyperbolic secant
• sin, Sine of argument in radians
• sind, Sine of argument in degrees
• sinh, Hyperbolic sine of argument in radians
• tan, Tangent of argument in radians
• tand, Tangent of argument in degrees
• tanh, Hyperbolic tangent

 

第3部分 指数函数等

• exp, 指数函数
• expm1, Compute exp(x)-1 accurately for small values of x
• log, 自然对数函数
• log10, 常用对数(10为底)
• log1p, Compute log(1+x) accurately for small values of x
• log2, Base 2 logarithm and dissect floating-point numbers into exponent and mantissa
• nextpow2, Next higher power of 2
• nthroot, Real nth root of real numbers
• pow2, Base 2 power and scale floating-point numbers
• reallog, Natural logarithm for nonnegative real arrays
• realpow, Array power for real-only output

 

第4部分 取整函数

• ceil, 向着∞取整
• fix, 截断取整
• floor, 向着-∞取整
• mod, Modulus after division
• round, 四舍五入取整

 

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