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isreal Scilab Group Scilab Function isreal
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isreal - check if a variable as real or complex entries
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x : vector or matrix with floating point entries or coefficients
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isreal(x) returns true if x is stored as a real variable and false if x
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stores complex numbers.
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isreal(x,eps) returns true if x is stored as a real variable or if
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maximum absolute value of imaginary floating points if less or equal than
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isreal(sprand(3,3,0.1))